[rt-users] MSMTP works for sending, but receiving is now - And why a full MTA?

[Cena, Stephen (ext. 300)]

Kevin -

-I've got Postfix running on my IT Helpdesk system and its running fine.
When I was having the smtp_recipient_restriction issue I went to the
Postfix IRC channel & they felt a full-blown MTA was overkill, so I
checked out MSMTP. My boss is uber paranoid when it comes to security so
anything I could do to reduce services that needed to be run was
desirable.
-I apologize for the repeat database question. I'd been checking the
incoming emails but that one got by me. It's possible that is what
happened. I've just upped max_allowed_packet in my MySQL.ini file from
4M to 10MB. I also had disastrous luck trying to migrate MySQL to
MariaDB & thought that might have had something to do with it. I also
explicitly put MaxAttachmentSize in my RT_SiteConfig.pm and also set to
10MB. I'll test that soon.
-I didn't spend too long with MSMTP. It was at least good exposure to
it, as I'd never heard of it before. What's bugging me is why I can't
use any of the smtp_recipient_restrictions on the server. In my eyes,
those bases are already covered by our Exchange server and our Postfix
mail relay. They've already been configured to deal with incorrect mail
(sending out mail that isn't from our domain, etc.) but my boss is a
die-hard security nut. Having gone through all of this now, I'm just
going to stick with Postfix on the RT server and leave the mail
protection to the others.

Thanks to everyone for the help & I apologize for the duplicate
questions.

Stephen Cena
QVII
MIS/IT Dept
850 Hudson Ave.
Rochester, NY. 14620
585-544-0450 x300
sjc at qvii.com
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