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Initial pass for achieving more consistency with docker-compose related configs. * Set DMS_DEBUG to 0 * align with default docker-compose.yml Co-authored-by: Casper <casperklein@users.noreply.github.com> Co-authored-by: Georg Lauterbach <44545919+georglauterbach@users.noreply.github.com> Co-authored-by: Brennan Kinney <5098581+polarathene@users.noreply.github.com>
62 lines
2.1 KiB
Markdown
62 lines
2.1 KiB
Markdown
---
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title: 'Override the Default Configs | Dovecot'
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---
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## Add Configuration
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The Dovecot default configuration can easily be extended providing a `config/dovecot.cf` file.
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[Dovecot documentation](https://wiki.dovecot.org) remains the best place to find configuration options.
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Your `docker-mailserver` folder should look like this example:
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```txt
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├── config
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│ ├── dovecot.cf
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│ ├── postfix-accounts.cf
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│ └── postfix-virtual.cf
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├── docker-compose.yml
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└── README.md
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```
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One common option to change is the maximum number of connections per user:
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```cf
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mail_max_userip_connections = 100
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```
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Another important option is the `default_process_limit` (defaults to `100`). If high-security mode is enabled you'll need to make sure this count is higher than the maximum number of users that can be logged in simultaneously.
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This limit is quickly reached if users connect to the mail server with multiple end devices.
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## Override Configuration
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For major configuration changes it’s best to override the dovecot configuration files. For each configuration file you want to override, add a list entry under the `volumes` key.
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You will need to first obtain the configuration from the running container: `mkdir -p ./config/dovecot && docker cp mailserver:/etc/dovecot/conf.d/10-master.conf ./config/dovecot/10-master.conf`
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```yaml
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services:
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mailserver:
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volumes:
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- maildata:/var/mail
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- ./config/dovecot/10-master.conf:/etc/dovecot/conf.d/10-master.conf
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```
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## Debugging
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To debug your dovecot configuration you can use:
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- This command: `./setup.sh debug login doveconf | grep <some-keyword>`
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- Or: `docker exec -it mailserver doveconf | grep <some-keyword>`
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!!! note
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[`setup.sh`][github-file-setupsh] is included in the `docker-mailserver` repository. Make sure to grap the one matching your image version.
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The `config/dovecot.cf` is copied internally to `/etc/dovecot/local.conf`. To check this file run:
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```sh
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docker exec -it mailserver cat /etc/dovecot/local.conf
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```
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[github-file-setupsh]: https://github.com/docker-mailserver/docker-mailserver/blob/master/setup.sh
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