[MlMt] OffTopic: Server recommendations?

[Kee Hinckley]

I currently use an old version of CommuniGate, which I've been running 
for a very long time (back when they had the unfortunate company name of 
Stalker and made a virtual Mac serial-port that could be accessed over 
TCP/IP). Rather than pay for an upgrade, I'm thinking about switching 
servers. I currently use CGP for SMTP/IMAP/POP/webmail. I also sometimes 
use it for Jabber/FTP, but I can do without those.

- I've had people recommend Zimbra and iRedmail.
- I need spam filtering integration (ideally SpamAssasin, which I 
currently have set to read people's train spam/ham folders).
- And obviously, I need a good IMAP server for MailMate to use.
- I _must_ be able to modify mail delivery to support 
"username-extension at domain" (yes, "-", not "+"). And I must be able to 
block some of those "-extension" addresses when they get compromised.
- I'm running Ubuntu Precise.

Does anyone have any recommendations? Mail me off list and I'll 
summarize if people are interested.

Thanks

     —kee
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