> The LMTP update for postfix is found on the download page at
> www.postfix.org under "Unofficial patches". I don't know how well it
> works. Alternately, if you want to go with production versions of software,
> sendmail has native support for LMTP in the recent releases. You could move
> the postfix MTA to a separate machine -- it probably could be a lot smaller
> than your current mail host -- and have it deliver to sendmail on the
> mailhost via SMTP where it would then be delivered via native LMTP to cyrus.
> Sendmail LMTP is activated with a MAILER(lmtp) in your sendmail.mc.
Exim (http://www.exim.org/) also has native support for LMTP in recent
releases. (Both TCP and unix socket versions.) And the Exim config
files are -much- easier to read and modify than Sendmail's...
> Sorry to inform you, but since I am using a very recent snapshot of
> postfix it does support lmtp "out of the box" as it were. And as I
> stated in my email, I am using lmtp directly via the socket interface...
> (there's authentication issues if you try to use a tcp connection,
> so I chose the socket method instead)
>
> Anyone else want to give this one a shot?
I'm not that familiar with postfix - can you turn on a level of logging
that would let you confirm that it is, in fact, batching all of the local
deliveries through a single LMTP invocation?
Have you used tools like top to compare resource usage among postfix,
lmtpd, and amavis? Have you tried turning off the amavis pass to make
sure it isn't the culpret?
-Pat
