net.cop filter: What software is available to filter and (optionally) block email between users on the same domain? I'm using Postfix with Google Apps but could be persuaded to use another solution. [more inside]
posted by BrokenEnglish on Oct 1, 2009 - 5 answers

E-mail disclaimers: Postfix/Altermime setup works great except when used as an SMTP outbound gateway for Google Apps it strips the HTML version of the disclaimer. [more inside]
posted by doomtop on May 2, 2008 - 1 answer

XServe Postfix: How can I disable hostname verification so that mobile users can send mail successfully through my server? [more inside]
posted by odinsdream on Oct 2, 2007 - 6 answers

I need a little help with Thunderbird/OSX/Gmail. [more inside]
posted by craniac on Sep 27, 2005 - 10 answers

I am responsible for setting up and maintaining a mail server for small web-hosting type business. We currently host about 75 domains, around 100 mailboxes and due to the efforts of our sales team, we are wanting to get ready for some great increases in those numbers. I am worried about my current configuration and ease of administration. More importantly (well, at least to the customers) is email deliverability -- it seems that messages delivered to some big players are being marked as SPAM or disappearing altogether. I am asking for insight and advice on 1) if my current choice of software/configuration is a good match for this situation and 2) if there any additional measures I might take to ensure email deliverability? [more inside]
posted by id on Aug 26, 2005 - 1 answer

How do I set up a Linux server to receive and store email? (+) [more inside]
posted by cillit bang on Feb 4, 2005 - 10 answers