computer-playbook/roles/docker-mailu/Readme.md

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# role docker-mailu
## setup
### bugs
#### fetchmail
Fetchmail doesn't work with big amounts of data.
For further information see this issue: https://github.com/Mailu/Mailu/issues/1719.
##### deactivation
If you have fetchmail installed and want to deinstall it keep in mind to delete all fetched accounts from the administration panel before you delete fetchmail.
##### security concerns
The [german wikipedia tells that there are some security concern with fetchmail](https://de.wikipedia.org/wiki/Fetchmail). If in the future a customer needs to functions of fetchmail, it could be better to write a docker container for [getmail](https://en.wikipedia.org/wiki/Getmail) instead because it should be more secure.
##### workaround
If you need to receive emails from another account this should help:
- Redirect to your new email account
- Export all data from your original account
- Import all data from your original account to your new account
### delete data
To delete all volumes and data execute:
```bash
rm -vr /etc/mailu/; docker volume rm $(docker volume ls -q | grep mailu_)
```
Be careful!
### ports
Keep in mind to change the conflicting ports manual.
Execute
```bash
netstat -tulpn
```
to verify that there aren't port conflicts
### admin account
Before you can use Mailu, you must create the primary administrator user account. This should be admin@{{hostname}}. Use the following command, changing PASSWORD to your liking:
```bash
docker-compose -p mailu exec admin flask mailu admin {{admin}} {{hostname}} PASSWORD
```
### cli user management
How to manage users is described here: https://mailu.io/master/cli.html
### Up
```bash
docker-compose -p mailu up -d
```
## debug
### mailu_front_1
```bash
sudo docker container exec -it mailu_front_1 /bin/bash
```
## update
For update instructions follow:
- https://mailu.io/master/maintain.html
## todo
- https://blog.kuepper.nrw/2019/03/30/roundcube-webmail-mit-zwei-faktor-authentifizierung/
- https://mailu.io/master/faq.html#i-want-to-integrate-nextcloud-15-and-newer-with-mailu
- https://docs.nextcloud.com/server/9.0/admin_manual/configuration_user/user_auth_ftp_smb_imap.html
## See
- https://gist.github.com/marienfressinaud/f284a59b18aad395eb0de2d22836ae6b
- https://mailu.io/1.7/compose/setup.html