Chris Nehren on 21 Mar 2011 04:28:28 -0700

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Re: [PLUG] Postfix bastion host?

On Mar 21, 2011, at 4:11 AM, JP Vossen wrote:

> Questions:
> 1) What IMAP server do you recommend on Debian Squeeze 64-bit with Postfix and (mostly) Thunderbird?  I'm currently using courier-imap-4.4.0-2 (Maildir) on Debian Lenny 32-bit, so it might be a bit easier to re-use some configs.  But maybe something else is better?  These jump out at me in the stock Squeeze repos:
> 	courier-imap - Courier mail server - IMAP server  # Using now
> 	cyrus-imapd-2.2 - Cyrus mail system - IMAP support
> 	dovecot-imapd - secure IMAP server that supports mbox and maildir mailboxes
> 	mailutils-imap4d - GNU mailutils-based IMAP4 Daemon

I would second the Dovecot suggestion as it's extremely simple. My config using SSL is 41 lines, excising the default config's (from which I built mine) copious commentary and blank lines.

> 2) Has anyone done this before or have similar configs?

My setup is rather trivial, I'm afraid, without the fancy relaying you describe. It's Postfix + Dovecot, again, for purposes of simplicity. 

> 3) Any comments, suggestions or things I missed?

Postfix has a soft_bounce config option (I think that's the name; if not, it's very similar) you can use as a bit of a safety net to prevent mail being lost while fiddling with configuration. Instead of deleting bounced mail from the queue, it'll store it and attempt delivery indefinitely, giving you the opportunity to fix whatever caused it to bounce--this may be as simple as enabling a catch-all mailbox.

Thanks and best regards,
Chris Nehren

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