53 lines
2.7 KiB
Bash
53 lines
2.7 KiB
Bash
#! /bin/bash
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# Support for Postfix features
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# Docs - virtual_mailbox_domains (Used in /etc/postfix/main.cf):
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# http://www.postfix.org/ADDRESS_CLASS_README.html#virtual_mailbox_class
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# http://www.postfix.org/VIRTUAL_README.html
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# > If you omit this setting then Postfix will reject mail (relay access denied) or will not be able to deliver it.
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# > NEVER list a virtual MAILBOX domain name as a `mydestination` domain!
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# > NEVER list a virtual MAILBOX domain name as a virtual ALIAS domain!
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#
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# > Execute the command "postmap /etc/postfix/virtual" after changing the virtual file,
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# > execute "postmap /etc/postfix/vmailbox" after changing the vmailbox file,
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# > and execute the command "postfix reload" after changing the main.cf file.
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#
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# - virtual_alias_domains is not used by docker-mailserver at present, although LDAP docs reference it.
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# - `postmap` only seems relevant when the lookup type is one of these `file_type` values: http://www.postfix.org/postmap.1.html
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# Should not be a concern for most types used by `docker-mailserver`: texthash, ldap, pcre, tcp, unionmap, unix.
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# The only other type in use by `docker-mailserver` is the hash type for /etc/aliases, which `postalias` handles.
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function _create_postfix_vhost
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{
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# `main.cf` configures `virtual_mailbox_domains = /etc/postfix/vhost`
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# NOTE: Amavis also consumes this file.
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: >/etc/postfix/vhost
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# Account and Alias generation will store values in `/tmp/vhost.tmp`.
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# Filter unique values to the proper config.
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# NOTE: LDAP stores the domain value set by `docker-mailserver`,
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# and correctly removes it from `mydestination` in `main.cf` in `setup-stack.sh`.
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if [[ -f /tmp/vhost.tmp ]]
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then
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sort < /tmp/vhost.tmp | uniq >> /etc/postfix/vhost
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rm /tmp/vhost.tmp
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fi
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}
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# Docs - Postfix lookup table files:
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# http://www.postfix.org/DATABASE_README.html
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#
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# Types used in scripts or config: ldap, texthash, hash, pcre, tcp, unionmap, unix
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# ldap type changes are network based, no `postfix reload` required.
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# texthash type is read into memory when Postfix process starts, requires `postfix reload` to apply changes.
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# texthash type does not require running `postmap` after changes are made, other types might.
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#
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# Examples of different types actively used:
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# setup-stack.sh:_setup_spoof_protection uses texthash + hash + pcre, and conditionally unionmap
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# main.cf:
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# - alias_maps and alias_database both use hash:/etc/aliases
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# - virtual_mailbox_maps and virtual_alias_maps use texthash
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# - `alias.sh` may append pcre:/etc/postfix/regexp to virtual_alias_maps in `main.cf`
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#
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# /etc/aliases is handled by `alias.sh` and uses `postalias` to update the Postfix alias database. No need for `postmap`.
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# http://www.postfix.org/postalias.1.html
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