docker-mailserver/v11.1/config/advanced/mail-sieve/index.html

1700 lines
48 KiB
HTML

<!doctype html>
<html lang="en" class="no-js">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1">
<meta name="description" content="A fullstack but simple mail-server (SMTP, IMAP, LDAP, Antispam, Antivirus, etc.) using Docker.">
<meta name="author" content="docker-mailserver (Github Organization)">
<link rel="canonical" href="https://docker-mailserver.github.io/docker-mailserver/edge/config/advanced/mail-sieve/">
<link rel="icon" href="../../../assets/logo/favicon-32x32.png">
<meta name="generator" content="mkdocs-1.3.0, mkdocs-material-8.3.5">
<title>Advanced | Email Filtering with Sieve - Docker Mailserver</title>
<link rel="stylesheet" href="../../../assets/stylesheets/main.4a0965b7.min.css">
<link rel="stylesheet" href="../../../assets/stylesheets/palette.cbb835fc.min.css">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:300,300i,400,400i,700,700i%7CRoboto+Mono:400,400i,700,700i&display=fallback">
<style>:root{--md-text-font:"Roboto";--md-code-font:"Roboto Mono"}</style>
<link rel="stylesheet" href="../../../assets/css/customizations.css">
<script>__md_scope=new URL("../../..",location),__md_get=(e,_=localStorage,t=__md_scope)=>JSON.parse(_.getItem(t.pathname+"."+e)),__md_set=(e,_,t=localStorage,a=__md_scope)=>{try{t.setItem(a.pathname+"."+e,JSON.stringify(_))}catch(e){}}</script>
</head>
<body dir="ltr" data-md-color-scheme="default" data-md-color-primary="indigo" data-md-color-accent="indigo">
<script>var palette=__md_get("__palette");if(palette&&"object"==typeof palette.color)for(var key of Object.keys(palette.color))document.body.setAttribute("data-md-color-"+key,palette.color[key])</script>
<input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
<input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
<label class="md-overlay" for="__drawer"></label>
<div data-md-component="skip">
<a href="#user-defined-sieve-filters" class="md-skip">
Skip to content
</a>
</div>
<div data-md-component="announce">
</div>
<div data-md-component="outdated" hidden>
<aside class="md-banner md-banner--warning">
</aside>
</div>
<header class="md-header" data-md-component="header">
<nav class="md-header__inner md-grid" aria-label="Header">
<a href="../../.." title="Docker Mailserver" class="md-header__button md-logo" aria-label="Docker Mailserver" data-md-component="logo">
<img src="../../../assets/logo/dmo-logo-white.min.svg" alt="logo">
</a>
<label class="md-header__button md-icon" for="__drawer">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 6h18v2H3V6m0 5h18v2H3v-2m0 5h18v2H3v-2Z"/></svg>
</label>
<div class="md-header__title" data-md-component="header-title">
<div class="md-header__ellipsis">
<div class="md-header__topic">
<span class="md-ellipsis">
Docker Mailserver
</span>
</div>
<div class="md-header__topic" data-md-component="header-topic">
<span class="md-ellipsis">
Advanced | Email Filtering with Sieve
</span>
</div>
</div>
</div>
<form class="md-header__option" data-md-component="palette">
<input class="md-option" data-md-color-media="(prefers-color-scheme: light)" data-md-color-scheme="default" data-md-color-primary="indigo" data-md-color-accent="indigo" aria-label="Switch to dark mode" type="radio" name="__palette" id="__palette_1">
<label class="md-header__button md-icon" title="Switch to dark mode" for="__palette_2" hidden>
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="m17.75 4.09-2.53 1.94.91 3.06-2.63-1.81-2.63 1.81.91-3.06-2.53-1.94L12.44 4l1.06-3 1.06 3 3.19.09m3.5 6.91-1.64 1.25.59 1.98-1.7-1.17-1.7 1.17.59-1.98L15.75 11l2.06-.05L18.5 9l.69 1.95 2.06.05m-2.28 4.95c.83-.08 1.72 1.1 1.19 1.85-.32.45-.66.87-1.08 1.27C15.17 23 8.84 23 4.94 19.07c-3.91-3.9-3.91-10.24 0-14.14.4-.4.82-.76 1.27-1.08.75-.53 1.93.36 1.85 1.19-.27 2.86.69 5.83 2.89 8.02a9.96 9.96 0 0 0 8.02 2.89m-1.64 2.02a12.08 12.08 0 0 1-7.8-3.47c-2.17-2.19-3.33-5-3.49-7.82-2.81 3.14-2.7 7.96.31 10.98 3.02 3.01 7.84 3.12 10.98.31Z"/></svg>
</label>
<input class="md-option" data-md-color-media="(prefers-color-scheme: dark)" data-md-color-scheme="slate" data-md-color-primary="indigo" data-md-color-accent="blue" aria-label="Switch to light mode" type="radio" name="__palette" id="__palette_2">
<label class="md-header__button md-icon" title="Switch to light mode" for="__palette_1" hidden>
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M12 7a5 5 0 0 1 5 5 5 5 0 0 1-5 5 5 5 0 0 1-5-5 5 5 0 0 1 5-5m0 2a3 3 0 0 0-3 3 3 3 0 0 0 3 3 3 3 0 0 0 3-3 3 3 0 0 0-3-3m0-7 2.39 3.42C13.65 5.15 12.84 5 12 5c-.84 0-1.65.15-2.39.42L12 2M3.34 7l4.16-.35A7.2 7.2 0 0 0 5.94 8.5c-.44.74-.69 1.5-.83 2.29L3.34 7m.02 10 1.76-3.77a7.131 7.131 0 0 0 2.38 4.14L3.36 17M20.65 7l-1.77 3.79a7.023 7.023 0 0 0-2.38-4.15l4.15.36m-.01 10-4.14.36c.59-.51 1.12-1.14 1.54-1.86.42-.73.69-1.5.83-2.29L20.64 17M12 22l-2.41-3.44c.74.27 1.55.44 2.41.44.82 0 1.63-.17 2.37-.44L12 22Z"/></svg>
</label>
</form>
<label class="md-header__button md-icon" for="__search">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M9.5 3A6.5 6.5 0 0 1 16 9.5c0 1.61-.59 3.09-1.56 4.23l.27.27h.79l5 5-1.5 1.5-5-5v-.79l-.27-.27A6.516 6.516 0 0 1 9.5 16 6.5 6.5 0 0 1 3 9.5 6.5 6.5 0 0 1 9.5 3m0 2C7 5 5 7 5 9.5S7 14 9.5 14 14 12 14 9.5 12 5 9.5 5Z"/></svg>
</label>
<div class="md-search" data-md-component="search" role="dialog">
<label class="md-search__overlay" for="__search"></label>
<div class="md-search__inner" role="search">
<form class="md-search__form" name="search">
<input type="text" class="md-search__input" name="query" aria-label="Search" placeholder="Search" autocapitalize="off" autocorrect="off" autocomplete="off" spellcheck="false" data-md-component="search-query" required>
<label class="md-search__icon md-icon" for="__search">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M9.5 3A6.5 6.5 0 0 1 16 9.5c0 1.61-.59 3.09-1.56 4.23l.27.27h.79l5 5-1.5 1.5-5-5v-.79l-.27-.27A6.516 6.516 0 0 1 9.5 16 6.5 6.5 0 0 1 3 9.5 6.5 6.5 0 0 1 9.5 3m0 2C7 5 5 7 5 9.5S7 14 9.5 14 14 12 14 9.5 12 5 9.5 5Z"/></svg>
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12Z"/></svg>
</label>
<nav class="md-search__options" aria-label="Search">
<button type="reset" class="md-search__icon md-icon" aria-label="Clear" tabindex="-1">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M19 6.41 17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12 19 6.41Z"/></svg>
</button>
</nav>
</form>
<div class="md-search__output">
<div class="md-search__scrollwrap" data-md-scrollfix>
<div class="md-search-result" data-md-component="search-result">
<div class="md-search-result__meta">
Initializing search
</div>
<ol class="md-search-result__list"></ol>
</div>
</div>
</div>
</div>
</div>
<div class="md-header__source">
<a href="https://github.com/docker-mailserver/docker-mailserver" title="Go to repository" class="md-source" data-md-component="source">
<div class="md-source__icon md-icon">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 496 512"><!--! Font Awesome Free 6.1.1 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2022 Fonticons, Inc.--><path d="M165.9 397.4c0 2-2.3 3.6-5.2 3.6-3.3.3-5.6-1.3-5.6-3.6 0-2 2.3-3.6 5.2-3.6 3-.3 5.6 1.3 5.6 3.6zm-31.1-4.5c-.7 2 1.3 4.3 4.3 4.9 2.6 1 5.6 0 6.2-2s-1.3-4.3-4.3-5.2c-2.6-.7-5.5.3-6.2 2.3zm44.2-1.7c-2.9.7-4.9 2.6-4.6 4.9.3 2 2.9 3.3 5.9 2.6 2.9-.7 4.9-2.6 4.6-4.6-.3-1.9-3-3.2-5.9-2.9zM244.8 8C106.1 8 0 113.3 0 252c0 110.9 69.8 205.8 169.5 239.2 12.8 2.3 17.3-5.6 17.3-12.1 0-6.2-.3-40.4-.3-61.4 0 0-70 15-84.7-29.8 0 0-11.4-29.1-27.8-36.6 0 0-22.9-15.7 1.6-15.4 0 0 24.9 2 38.6 25.8 21.9 38.6 58.6 27.5 72.9 20.9 2.3-16 8.8-27.1 16-33.7-55.9-6.2-112.3-14.3-112.3-110.5 0-27.5 7.6-41.3 23.6-58.9-2.6-6.5-11.1-33.3 2.6-67.9 20.9-6.5 69 27 69 27 20-5.6 41.5-8.5 62.8-8.5s42.8 2.9 62.8 8.5c0 0 48.1-33.6 69-27 13.7 34.7 5.2 61.4 2.6 67.9 16 17.7 25.8 31.5 25.8 58.9 0 96.5-58.9 104.2-114.8 110.5 9.2 7.9 17 22.9 17 46.4 0 33.7-.3 75.4-.3 83.6 0 6.5 4.6 14.4 17.3 12.1C428.2 457.8 496 362.9 496 252 496 113.3 383.5 8 244.8 8zM97.2 352.9c-1.3 1-1 3.3.7 5.2 1.6 1.6 3.9 2.3 5.2 1 1.3-1 1-3.3-.7-5.2-1.6-1.6-3.9-2.3-5.2-1zm-10.8-8.1c-.7 1.3.3 2.9 2.3 3.9 1.6 1 3.6.7 4.3-.7.7-1.3-.3-2.9-2.3-3.9-2-.6-3.6-.3-4.3.7zm32.4 35.6c-1.6 1.3-1 4.3 1.3 6.2 2.3 2.3 5.2 2.6 6.5 1 1.3-1.3.7-4.3-1.3-6.2-2.2-2.3-5.2-2.6-6.5-1zm-11.4-14.7c-1.6 1-1.6 3.6 0 5.9 1.6 2.3 4.3 3.3 5.6 2.3 1.6-1.3 1.6-3.9 0-6.2-1.4-2.3-4-3.3-5.6-2z"/></svg>
</div>
<div class="md-source__repository">
docker-mailserver
</div>
</a>
</div>
</nav>
</header>
<div class="md-container" data-md-component="container">
<nav class="md-tabs" aria-label="Tabs" data-md-component="tabs">
<div class="md-tabs__inner md-grid">
<ul class="md-tabs__list">
<li class="md-tabs__item">
<a href="../../.." class="md-tabs__link">
Home
</a>
</li>
<li class="md-tabs__item">
<a href="../../../introduction/" class="md-tabs__link">
Introduction
</a>
</li>
<li class="md-tabs__item">
<a href="../../setup.sh/" class="md-tabs__link md-tabs__link--active">
Configuration
</a>
</li>
<li class="md-tabs__item">
<a href="../../../examples/tutorials/basic-installation/" class="md-tabs__link">
Examples
</a>
</li>
<li class="md-tabs__item">
<a href="../../../faq/" class="md-tabs__link">
FAQ
</a>
</li>
<li class="md-tabs__item">
<a href="../../../contributing/issues-and-pull-requests/" class="md-tabs__link">
Contributing
</a>
</li>
<li class="md-tabs__item">
<a href="https://hub.docker.com/r/mailserver/docker-mailserver/" class="md-tabs__link">
DockerHub
</a>
</li>
<li class="md-tabs__item">
<a href="https://github.com/docker-mailserver/docker-mailserver/pkgs/container/docker-mailserver" class="md-tabs__link">
GHCR
</a>
</li>
</ul>
</div>
</nav>
<main class="md-main" data-md-component="main">
<div class="md-main__inner md-grid">
<div class="md-sidebar md-sidebar--primary" data-md-component="sidebar" data-md-type="navigation" >
<div class="md-sidebar__scrollwrap">
<div class="md-sidebar__inner">
<nav class="md-nav md-nav--primary md-nav--lifted" aria-label="Navigation" data-md-level="0">
<label class="md-nav__title" for="__drawer">
<a href="../../.." title="Docker Mailserver" class="md-nav__button md-logo" aria-label="Docker Mailserver" data-md-component="logo">
<img src="../../../assets/logo/dmo-logo-white.min.svg" alt="logo">
</a>
Docker Mailserver
</label>
<div class="md-nav__source">
<a href="https://github.com/docker-mailserver/docker-mailserver" title="Go to repository" class="md-source" data-md-component="source">
<div class="md-source__icon md-icon">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 496 512"><!--! Font Awesome Free 6.1.1 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2022 Fonticons, Inc.--><path d="M165.9 397.4c0 2-2.3 3.6-5.2 3.6-3.3.3-5.6-1.3-5.6-3.6 0-2 2.3-3.6 5.2-3.6 3-.3 5.6 1.3 5.6 3.6zm-31.1-4.5c-.7 2 1.3 4.3 4.3 4.9 2.6 1 5.6 0 6.2-2s-1.3-4.3-4.3-5.2c-2.6-.7-5.5.3-6.2 2.3zm44.2-1.7c-2.9.7-4.9 2.6-4.6 4.9.3 2 2.9 3.3 5.9 2.6 2.9-.7 4.9-2.6 4.6-4.6-.3-1.9-3-3.2-5.9-2.9zM244.8 8C106.1 8 0 113.3 0 252c0 110.9 69.8 205.8 169.5 239.2 12.8 2.3 17.3-5.6 17.3-12.1 0-6.2-.3-40.4-.3-61.4 0 0-70 15-84.7-29.8 0 0-11.4-29.1-27.8-36.6 0 0-22.9-15.7 1.6-15.4 0 0 24.9 2 38.6 25.8 21.9 38.6 58.6 27.5 72.9 20.9 2.3-16 8.8-27.1 16-33.7-55.9-6.2-112.3-14.3-112.3-110.5 0-27.5 7.6-41.3 23.6-58.9-2.6-6.5-11.1-33.3 2.6-67.9 20.9-6.5 69 27 69 27 20-5.6 41.5-8.5 62.8-8.5s42.8 2.9 62.8 8.5c0 0 48.1-33.6 69-27 13.7 34.7 5.2 61.4 2.6 67.9 16 17.7 25.8 31.5 25.8 58.9 0 96.5-58.9 104.2-114.8 110.5 9.2 7.9 17 22.9 17 46.4 0 33.7-.3 75.4-.3 83.6 0 6.5 4.6 14.4 17.3 12.1C428.2 457.8 496 362.9 496 252 496 113.3 383.5 8 244.8 8zM97.2 352.9c-1.3 1-1 3.3.7 5.2 1.6 1.6 3.9 2.3 5.2 1 1.3-1 1-3.3-.7-5.2-1.6-1.6-3.9-2.3-5.2-1zm-10.8-8.1c-.7 1.3.3 2.9 2.3 3.9 1.6 1 3.6.7 4.3-.7.7-1.3-.3-2.9-2.3-3.9-2-.6-3.6-.3-4.3.7zm32.4 35.6c-1.6 1.3-1 4.3 1.3 6.2 2.3 2.3 5.2 2.6 6.5 1 1.3-1.3.7-4.3-1.3-6.2-2.2-2.3-5.2-2.6-6.5-1zm-11.4-14.7c-1.6 1-1.6 3.6 0 5.9 1.6 2.3 4.3 3.3 5.6 2.3 1.6-1.3 1.6-3.9 0-6.2-1.4-2.3-4-3.3-5.6-2z"/></svg>
</div>
<div class="md-source__repository">
docker-mailserver
</div>
</a>
</div>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../../.." class="md-nav__link">
Home
</a>
</li>
<li class="md-nav__item">
<a href="../../../introduction/" class="md-nav__link">
Introduction
</a>
</li>
<li class="md-nav__item md-nav__item--active md-nav__item--nested">
<input class="md-nav__toggle md-toggle" data-md-toggle="__nav_3" type="checkbox" id="__nav_3" checked>
<label class="md-nav__link" for="__nav_3">
Configuration
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" aria-label="Configuration" data-md-level="1">
<label class="md-nav__title" for="__nav_3">
<span class="md-nav__icon md-icon"></span>
Configuration
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../../setup.sh/" class="md-nav__link">
Your Best Friend setup.sh
</a>
</li>
<li class="md-nav__item">
<a href="../../environment/" class="md-nav__link">
Environment Variables
</a>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle md-toggle--indeterminate" data-md-toggle="__nav_3_3" type="checkbox" id="__nav_3_3" checked>
<label class="md-nav__link" for="__nav_3_3">
User Management
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" aria-label="User Management" data-md-level="2">
<label class="md-nav__title" for="__nav_3_3">
<span class="md-nav__icon md-icon"></span>
User Management
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../../user-management/accounts/" class="md-nav__link">
Accounts
</a>
</li>
<li class="md-nav__item">
<a href="../../user-management/aliases/" class="md-nav__link">
Aliases
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle md-toggle--indeterminate" data-md-toggle="__nav_3_4" type="checkbox" id="__nav_3_4" checked>
<label class="md-nav__link" for="__nav_3_4">
Best Practices
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" aria-label="Best Practices" data-md-level="2">
<label class="md-nav__title" for="__nav_3_4">
<span class="md-nav__icon md-icon"></span>
Best Practices
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../../best-practices/dkim/" class="md-nav__link">
DKIM
</a>
</li>
<li class="md-nav__item">
<a href="../../best-practices/dmarc/" class="md-nav__link">
DMARC
</a>
</li>
<li class="md-nav__item">
<a href="../../best-practices/spf/" class="md-nav__link">
SPF
</a>
</li>
<li class="md-nav__item">
<a href="../../best-practices/autodiscover/" class="md-nav__link">
Auto-discovery
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle md-toggle--indeterminate" data-md-toggle="__nav_3_5" type="checkbox" id="__nav_3_5" checked>
<label class="md-nav__link" for="__nav_3_5">
Security
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" aria-label="Security" data-md-level="2">
<label class="md-nav__title" for="__nav_3_5">
<span class="md-nav__icon md-icon"></span>
Security
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../../security/understanding-the-ports/" class="md-nav__link">
Understanding the Ports
</a>
</li>
<li class="md-nav__item">
<a href="../../security/ssl/" class="md-nav__link">
SSL/TLS
</a>
</li>
<li class="md-nav__item">
<a href="../../security/fail2ban/" class="md-nav__link">
Fail2Ban
</a>
</li>
<li class="md-nav__item">
<a href="../../security/mail_crypt/" class="md-nav__link">
Mail Encryption
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle md-toggle--indeterminate" data-md-toggle="__nav_3_6" type="checkbox" id="__nav_3_6" checked>
<label class="md-nav__link" for="__nav_3_6">
Troubleshooting
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" aria-label="Troubleshooting" data-md-level="2">
<label class="md-nav__title" for="__nav_3_6">
<span class="md-nav__icon md-icon"></span>
Troubleshooting
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../../troubleshooting/debugging/" class="md-nav__link">
Debugging
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="../../pop3/" class="md-nav__link">
Mail Delivery with POP3
</a>
</li>
<li class="md-nav__item md-nav__item--active md-nav__item--nested">
<input class="md-nav__toggle md-toggle" data-md-toggle="__nav_3_8" type="checkbox" id="__nav_3_8" checked>
<label class="md-nav__link" for="__nav_3_8">
Advanced Configuration
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" aria-label="Advanced Configuration" data-md-level="2">
<label class="md-nav__title" for="__nav_3_8">
<span class="md-nav__icon md-icon"></span>
Advanced Configuration
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../optional-config/" class="md-nav__link">
Optional Configuration
</a>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle md-toggle--indeterminate" data-md-toggle="__nav_3_8_2" type="checkbox" id="__nav_3_8_2" checked>
<label class="md-nav__link" for="__nav_3_8_2">
Maintenance
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" aria-label="Maintenance" data-md-level="3">
<label class="md-nav__title" for="__nav_3_8_2">
<span class="md-nav__icon md-icon"></span>
Maintenance
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../maintenance/update-and-cleanup/" class="md-nav__link">
Update and Cleanup
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle md-toggle--indeterminate" data-md-toggle="__nav_3_8_3" type="checkbox" id="__nav_3_8_3" checked>
<label class="md-nav__link" for="__nav_3_8_3">
Override the Default Configs
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" aria-label="Override the Default Configs" data-md-level="3">
<label class="md-nav__title" for="__nav_3_8_3">
<span class="md-nav__icon md-icon"></span>
Override the Default Configs
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../override-defaults/dovecot/" class="md-nav__link">
Dovecot
</a>
</li>
<li class="md-nav__item">
<a href="../override-defaults/postfix/" class="md-nav__link">
Postfix
</a>
</li>
<li class="md-nav__item">
<a href="../override-defaults/user-patches/" class="md-nav__link">
Modifications via Script
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="../auth-ldap/" class="md-nav__link">
LDAP Authentication
</a>
</li>
<li class="md-nav__item md-nav__item--active">
<input class="md-nav__toggle md-toggle" data-md-toggle="toc" type="checkbox" id="__toc">
<label class="md-nav__link md-nav__link--active" for="__toc">
Email Filtering with Sieve
<span class="md-nav__icon md-icon"></span>
</label>
<a href="./" class="md-nav__link md-nav__link--active">
Email Filtering with Sieve
</a>
<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
<label class="md-nav__title" for="__toc">
<span class="md-nav__icon md-icon"></span>
Table of contents
</label>
<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
<li class="md-nav__item">
<a href="#user-defined-sieve-filters" class="md-nav__link">
User-Defined Sieve Filters
</a>
</li>
<li class="md-nav__item">
<a href="#automatic-sorting-based-on-subaddresses" class="md-nav__link">
Automatic Sorting Based on Subaddresses
</a>
</li>
<li class="md-nav__item">
<a href="#manage-sieve" class="md-nav__link">
Manage Sieve
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="../mail-fetchmail/" class="md-nav__link">
Email Gathering with Fetchmail
</a>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle md-toggle--indeterminate" data-md-toggle="__nav_3_8_7" type="checkbox" id="__nav_3_8_7" checked>
<label class="md-nav__link" for="__nav_3_8_7">
Email Forwarding
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" aria-label="Email Forwarding" data-md-level="3">
<label class="md-nav__title" for="__nav_3_8_7">
<span class="md-nav__icon md-icon"></span>
Email Forwarding
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../mail-forwarding/relay-hosts/" class="md-nav__link">
Relay Hosts
</a>
</li>
<li class="md-nav__item">
<a href="../mail-forwarding/aws-ses/" class="md-nav__link">
AWS SES
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="../full-text-search/" class="md-nav__link">
Full-Text Search
</a>
</li>
<li class="md-nav__item">
<a href="../kubernetes/" class="md-nav__link">
Kubernetes
</a>
</li>
<li class="md-nav__item">
<a href="../ipv6/" class="md-nav__link">
IPv6
</a>
</li>
<li class="md-nav__item">
<a href="../podman/" class="md-nav__link">
Podman
</a>
</li>
<li class="md-nav__item">
<a href="../dovecot-master-accounts/" class="md-nav__link">
Dovecot Master Accounts
</a>
</li>
</ul>
</nav>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle md-toggle--indeterminate" data-md-toggle="__nav_4" type="checkbox" id="__nav_4" checked>
<label class="md-nav__link" for="__nav_4">
Examples
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" aria-label="Examples" data-md-level="1">
<label class="md-nav__title" for="__nav_4">
<span class="md-nav__icon md-icon"></span>
Examples
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle md-toggle--indeterminate" data-md-toggle="__nav_4_1" type="checkbox" id="__nav_4_1" checked>
<label class="md-nav__link" for="__nav_4_1">
Tutorials
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" aria-label="Tutorials" data-md-level="2">
<label class="md-nav__title" for="__nav_4_1">
<span class="md-nav__icon md-icon"></span>
Tutorials
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../../../examples/tutorials/basic-installation/" class="md-nav__link">
Basic Installation
</a>
</li>
<li class="md-nav__item">
<a href="../../../examples/tutorials/mailserver-behind-proxy/" class="md-nav__link">
Mailserver behind Proxy
</a>
</li>
<li class="md-nav__item">
<a href="../../../examples/tutorials/docker-build/" class="md-nav__link">
Building your own Docker image
</a>
</li>
<li class="md-nav__item">
<a href="../../../examples/tutorials/blog-posts/" class="md-nav__link">
Blog Posts
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle md-toggle--indeterminate" data-md-toggle="__nav_4_2" type="checkbox" id="__nav_4_2" checked>
<label class="md-nav__link" for="__nav_4_2">
Use Cases
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" aria-label="Use Cases" data-md-level="2">
<label class="md-nav__title" for="__nav_4_2">
<span class="md-nav__icon md-icon"></span>
Use Cases
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../../../examples/use-cases/forward-only-mailserver-with-ldap-authentication/" class="md-nav__link">
Forward-Only Mail-Server with LDAP
</a>
</li>
<li class="md-nav__item">
<a href="../../../examples/use-cases/imap-folders/" class="md-nav__link">
Customize IMAP Folders
</a>
</li>
</ul>
</nav>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="../../../faq/" class="md-nav__link">
FAQ
</a>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle md-toggle--indeterminate" data-md-toggle="__nav_6" type="checkbox" id="__nav_6" checked>
<label class="md-nav__link" for="__nav_6">
Contributing
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" aria-label="Contributing" data-md-level="1">
<label class="md-nav__title" for="__nav_6">
<span class="md-nav__icon md-icon"></span>
Contributing
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../../../contributing/issues-and-pull-requests/" class="md-nav__link">
Issues and Pull Requests
</a>
</li>
<li class="md-nav__item">
<a href="../../../contributing/coding-style/" class="md-nav__link">
Coding Style
</a>
</li>
<li class="md-nav__item">
<a href="../../../contributing/tests/" class="md-nav__link">
Tests
</a>
</li>
<li class="md-nav__item">
<a href="../../../contributing/documentation/" class="md-nav__link">
Documentation
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="https://hub.docker.com/r/mailserver/docker-mailserver/" class="md-nav__link">
DockerHub
</a>
</li>
<li class="md-nav__item">
<a href="https://github.com/docker-mailserver/docker-mailserver/pkgs/container/docker-mailserver" class="md-nav__link">
GHCR
</a>
</li>
</ul>
</nav>
</div>
</div>
</div>
<div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="toc" >
<div class="md-sidebar__scrollwrap">
<div class="md-sidebar__inner">
<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
<label class="md-nav__title" for="__toc">
<span class="md-nav__icon md-icon"></span>
Table of contents
</label>
<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
<li class="md-nav__item">
<a href="#user-defined-sieve-filters" class="md-nav__link">
User-Defined Sieve Filters
</a>
</li>
<li class="md-nav__item">
<a href="#automatic-sorting-based-on-subaddresses" class="md-nav__link">
Automatic Sorting Based on Subaddresses
</a>
</li>
<li class="md-nav__item">
<a href="#manage-sieve" class="md-nav__link">
Manage Sieve
</a>
</li>
</ul>
</nav>
</div>
</div>
</div>
<div class="md-content" data-md-component="content">
<article class="md-content__inner md-typeset">
<a href="https://github.com/docker-mailserver/docker-mailserver/edit/master/docs/content/config/advanced/mail-sieve.md" title="Edit this page" class="md-content__button md-icon">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20.71 7.04c.39-.39.39-1.04 0-1.41l-2.34-2.34c-.37-.39-1.02-.39-1.41 0l-1.84 1.83 3.75 3.75M3 17.25V21h3.75L17.81 9.93l-3.75-3.75L3 17.25Z"/></svg>
</a>
<h1>Email Filtering with Sieve</h1>
<h2 id="user-defined-sieve-filters"><a class="toclink" href="#user-defined-sieve-filters">User-Defined Sieve Filters</a></h2>
<p><a href="http://sieve.info/">Sieve</a> allows to specify filtering rules for incoming emails that allow for example sorting mails into different folders depending on the title of an email.
There are global and user specific filters which are filtering the incoming emails in the following order:</p>
<ul>
<li>Global-before -&gt; User specific -&gt; Global-after</li>
</ul>
<p>Global filters are applied to EVERY incoming mail for EVERY email address.
To specify a global Sieve filter provide a <code>docker-data/dms/config/before.dovecot.sieve</code> or a <code>docker-data/dms/config/after.dovecot.sieve</code> file with your filter rules.
If any filter in this filtering chain discards an incoming mail, the delivery process will stop as well and the mail will not reach any following filters(e.g. global-before stops an incoming spam mail: The mail will get discarded and a user-specific filter won't get applied.)</p>
<p>To specify a user-defined Sieve filter place a <code>.dovecot.sieve</code> file into a virtual user's mail folder e.g. <code>/var/mail/example.com/user1/.dovecot.sieve</code>. If this file exists dovecot will apply the filtering rules.</p>
<p>It's even possible to install a user provided Sieve filter at startup during users setup: simply include a Sieve file in the <code>docker-data/dms/config/</code> path for each user login that needs a filter. The file name provided should be in the form <code>&lt;user_login&gt;.dovecot.sieve</code>, so for example for <code>user1@example.com</code> you should provide a Sieve file named <code>docker-data/dms/config/user1@example.com.dovecot.sieve</code>.</p>
<p>An example of a sieve filter that moves mails to a folder <code>INBOX/spam</code> depending on the sender address:</p>
<div class="admonition example">
<p class="admonition-title">Example</p>
<div class="highlight"><pre><span></span><code><span class="kn">require</span> <span class="p">[</span><span class="s">&quot;fileinto&quot;</span><span class="p">,</span> <span class="s">&quot;reject&quot;</span><span class="p">];</span>
<span class="nb">if</span> <span class="nb">address</span> <span class="nt">:contains</span> <span class="p">[</span><span class="s">&quot;From&quot;</span><span class="p">]</span> <span class="s">&quot;spam@spam.com&quot;</span> <span class="p">{</span>
<span class="nb">fileinto</span> <span class="s">&quot;INBOX.spam&quot;</span><span class="p">;</span>
<span class="p">}</span> <span class="nb">else</span> <span class="p">{</span>
<span class="nb">keep</span><span class="p">;</span>
<span class="p">}</span>
</code></pre></div>
</div>
<div class="admonition warning">
<p class="admonition-title">Warning</p>
<p>That folders have to exist beforehand if sieve should move them.</p>
</div>
<p>Another example of a sieve filter that forward mails to a different address:</p>
<div class="admonition example">
<p class="admonition-title">Example</p>
<div class="highlight"><pre><span></span><code><span class="kn">require</span> <span class="p">[</span><span class="s">&quot;copy&quot;</span><span class="p">];</span>
<span class="nb">redirect</span> <span class="nt">:copy</span> <span class="s">&quot;user2@not-example.com&quot;</span><span class="p">;</span>
</code></pre></div>
</div>
<p>Just forward all incoming emails and do not save them locally:</p>
<div class="admonition example">
<p class="admonition-title">Example</p>
<div class="highlight"><pre><span></span><code><span class="nb">redirect</span> <span class="s">&quot;user2@not-example.com&quot;</span><span class="p">;</span>
</code></pre></div>
</div>
<p>You can also use external programs to filter or pipe (process) messages by adding executable scripts in <code>docker-data/dms/config/sieve-pipe</code> or <code>docker-data/dms/config/sieve-filter</code>. This can be used in lieu of a local alias file, for instance to forward an email to a webservice. These programs can then be referenced by filename, by all users. Note that the process running the scripts run as a privileged user. For further information see <a href="https://wiki.dovecot.org/Pigeonhole/Sieve/Plugins/Pipe">Dovecot's wiki</a>.</p>
<div class="highlight"><pre><span></span><code><span class="kn">require</span> <span class="p">[</span><span class="s">&quot;vnd.dovecot.pipe&quot;</span><span class="p">];</span>
<span class="err">pipe</span> <span class="s">&quot;external-program&quot;</span><span class="p">;</span>
</code></pre></div>
<p>For more examples or a detailed description of the Sieve language have a look at <a href="http://sieve.info/examplescripts">the official site</a>. Other resources are available on the internet where you can find several <a href="https://support.tigertech.net/sieve#sieve-example-rules-jmp">examples</a>.</p>
<h2 id="automatic-sorting-based-on-subaddresses"><a class="toclink" href="#automatic-sorting-based-on-subaddresses">Automatic Sorting Based on Subaddresses</a></h2>
<p>It is possible to sort subaddresses such as <code>user+mailing-lists@example.com</code> into a corresponding folder (here: <code>INBOX/Mailing-lists</code>) automatically.</p>
<div class="highlight"><pre><span></span><code><span class="kn">require</span> <span class="p">[</span><span class="s">&quot;envelope&quot;</span><span class="p">,</span> <span class="s">&quot;fileinto&quot;</span><span class="p">,</span> <span class="s">&quot;mailbox&quot;</span><span class="p">,</span> <span class="s">&quot;subaddress&quot;</span><span class="p">,</span> <span class="s">&quot;variables&quot;</span><span class="p">];</span>
<span class="nb">if</span> <span class="nb">envelope</span> <span class="nt">:detail</span> <span class="nt">:matches</span> <span class="s">&quot;to&quot;</span> <span class="s">&quot;*&quot;</span> <span class="p">{</span>
<span class="kd">set</span> <span class="nt">:lower</span> <span class="nt">:upperfirst</span> <span class="s">&quot;tag&quot;</span> <span class="s">&quot;${1}&quot;</span><span class="p">;</span>
<span class="nb">if</span> <span class="err">mailbox</span><span class="nb">exists</span> <span class="s">&quot;INBOX.${1}&quot;</span> <span class="p">{</span>
<span class="nb">fileinto</span> <span class="s">&quot;INBOX.${1}&quot;</span><span class="p">;</span>
<span class="p">}</span> <span class="nb">else</span> <span class="p">{</span>
<span class="nb">fileinto</span> <span class="nt">:create</span> <span class="s">&quot;INBOX.${tag}&quot;</span><span class="p">;</span>
<span class="p">}</span>
<span class="p">}</span>
</code></pre></div>
<h2 id="manage-sieve"><a class="toclink" href="#manage-sieve">Manage Sieve</a></h2>
<p>The <a href="https://doc.dovecot.org/admin_manual/pigeonhole_managesieve_server/">Manage Sieve</a> extension allows users to modify their Sieve script by themselves. The authentication mechanisms are the same as for the main dovecot service. ManageSieve runs on port <code>4190</code> and needs to be enabled using the <code>ENABLE_MANAGESIEVE=1</code> environment variable.</p>
<div class="admonition example">
<p class="admonition-title">Example</p>
<div class="highlight"><pre><span></span><code><span class="c1"># docker-compose.yml</span><span class="w"></span>
<span class="nt">ports</span><span class="p">:</span><span class="w"></span>
<span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="s">&quot;4190:4190&quot;</span><span class="w"></span>
<span class="nt">environment</span><span class="p">:</span><span class="w"></span>
<span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">ENABLE_MANAGESIEVE=1</span><span class="w"></span>
</code></pre></div>
</div>
<p>All user defined sieve scripts that are managed by ManageSieve are stored in the user's home folder in <code>/var/mail/example.com/user1/sieve</code>. Just one sieve script might be active for a user and is sym-linked to <code>/var/mail/example.com/user1/.dovecot.sieve</code> automatically.</p>
<div class="admonition note">
<p class="admonition-title">Note</p>
<p>ManageSieve makes sure to not overwrite an existing <code>.dovecot.sieve</code> file. If a user activates a new sieve script the old one is backuped and moved to the <code>sieve</code> folder.</p>
</div>
<p>The extension is known to work with the following ManageSieve clients:</p>
<ul>
<li><strong><a href="https://github.com/thsmi/sieve">Sieve Editor</a></strong> a portable standalone application based on the former Thunderbird plugin.</li>
<li><strong><a href="https://kontact.kde.org/components/kmail/">Kmail</a></strong> the mail client of <a href="https://kde.org/">KDE</a>'s Kontact Suite.</li>
</ul>
</article>
</div>
</div>
<a href="#" class="md-top md-icon" data-md-component="top" hidden>
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M13 20h-2V8l-5.5 5.5-1.42-1.42L12 4.16l7.92 7.92-1.42 1.42L13 8v12Z"/></svg>
Back to top
</a>
</main>
<footer class="md-footer">
<nav class="md-footer__inner md-grid" aria-label="Footer" >
<a href="../auth-ldap/" class="md-footer__link md-footer__link--prev" aria-label="Previous: LDAP Authentication" rel="prev">
<div class="md-footer__button md-icon">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12Z"/></svg>
</div>
<div class="md-footer__title">
<div class="md-ellipsis">
<span class="md-footer__direction">
Previous
</span>
LDAP Authentication
</div>
</div>
</a>
<a href="../mail-fetchmail/" class="md-footer__link md-footer__link--next" aria-label="Next: Email Gathering with Fetchmail" rel="next">
<div class="md-footer__title">
<div class="md-ellipsis">
<span class="md-footer__direction">
Next
</span>
Email Gathering with Fetchmail
</div>
</div>
<div class="md-footer__button md-icon">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M4 11v2h12l-5.5 5.5 1.42 1.42L19.84 12l-7.92-7.92L10.5 5.5 16 11H4Z"/></svg>
</div>
</a>
</nav>
<div class="md-footer-meta md-typeset">
<div class="md-footer-meta__inner md-grid">
<div class="md-copyright">
<div class="md-copyright__highlight">
<p>&copy <a href="https://github.com/docker-mailserver"><em>Docker Mailserver Organization</em></a><br/><span>This project is licensed under the MIT license.</span></p>
</div>
Made with
<a href="https://squidfunk.github.io/mkdocs-material/" target="_blank" rel="noopener">
Material for MkDocs
</a>
</div>
</div>
</div>
</footer>
</div>
<div class="md-dialog" data-md-component="dialog">
<div class="md-dialog__inner md-typeset"></div>
</div>
<script id="__config" type="application/json">{"base": "../../..", "features": ["navigation.tabs", "navigation.top", "navigation.expand", "navigation.instant", "content.code.annotate"], "search": "../../../assets/javascripts/workers/search.85cb4492.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.placeholder": "Search", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version.title": "Select version"}, "version": {"provider": "mike"}}</script>
<script src="../../../assets/javascripts/bundle.431f3d41.min.js"></script>
</body>
</html>