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Dbmail? A great Open Source email system, especially for LAMP/MySql administrators

I chose Dbmail because it has a 100% Mysql-backend configuration and the possibility to have a synchronized backup-slave in the network, which you can stop everytime to make consistent snapshots for offsite backups without interrupting the mail server. We are using Dovecot as proxy in front of Dbmail for several reasons:

* it supports more auth mechanisms than dbmail
* it supports TLS/SSL directly
* it supports replaces (% to @) since historically many users are configured with %
* postfix supports dovecot directly for SASL-Auth, so you have the same auth-mechs and encryption options for pop3, Imap and smtp
* security: I think it would be hard to exploit Dbmail through Dovecot (whereas exploiting directly dovecot seems harder, since it has only the user-logins)

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