setting up mail and/or sendmail to use third party SMTP gateway.

Timothy Selivanow timothy.selivanow at
Wed Feb 6 19:41:12 UTC 2008

On Wed, 2008-02-06 at 14:28 -0500, RThimble at wrote:
> Everyone,
> I have been getting bogged down and confused with the documentation on 
> setting up mail to send to a SMTP gateway. The problem is there is no 
> internal MX record(s) in DNS and we will not be adding any. I want to send 
> output  to my corporate email account from our snort sensors when rules 
> are changed through oinkmaster. Any ideas on where I can start would be 
> useful. 
> Thank you
> Rick
> Richard Thimble
> Century Bank
> 400 Mystic Avenue
> Medford, MA 02155
> Telephone: 781.393.4189
> Mobile: 781.507.5457
> Email: rthimble at
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If you aren't opposed to using Postfix, I'd recommend that as the
configuration makes more sense than Sendmail IMO.  In Postfix, you'd
just add a line that says:

	relayhost = [IP or FQDN of relay host]

In fact, that is already in the shipped just commented out (very
verbose default config file).

A *long* time ago I looked at Sendmail initially, but we use Postfix at
work so when I started to ask questions about Sendmail everyone said to
use Postfix...or to always have FQDN (and reverse) for everything, that
way it magically Just Works (TM).

/ "Just think, with VLSI we can have 100 ENIACS on a chip!" \
\ -- Alan Perlis                                            /
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