[Chugalug] lightweight MTA

Dave Brockman dave at brockmans.com
Thu Jun 6 21:10:46 UTC 2013


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On 6/6/2013 4:55 PM, Rod-Lists wrote:
> Dave, I been hearing about postfix plus dovecot. Wes, SSMTP might
> in other situation but this one I expect several contact forms that
> will need to be forwarded.

Postfix is your SMTP.  If you relay to a proper mail server your
Postfix requires the following:

relayhost = my.mailserver.com:25

You *could* do it per-domain via /etc/postfix/transport[1]

domain1.com smtp:my.mailserver.com:25
domain2.com smtp:my.otherserver.com:25
domain3.com smtp:[192.168.1.25:25]
(enclosing in brackets forces DNS lookup bypass)

Otherwise, it should only listen locally, the webserver and associated
processes can talk to 127.0.0.1 all day long and never exposing SMTP
to the Intertubez on your HTTP server at all.

Dovecot is your MDA/LDA/POP/IMAP services.  Not needed per your
original description.

I believe SSMTP was the default on Gentoo 2006-2008 timeframe, if so,
then I am familiar with it.  It is literally just a relay only
service, and if I'm still on the right track, I had issues with
deliveries to some mail server or other, although if I am still on the
right track, it was most likely Exchange.

[1] - I know I said you COULD do that.  You don't actually WANT to do
that based on your presented description.

Regards,

dtb
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