OT: Multiple Outgoing IPs?

Gerard Seibert gerard at seibercom.net
Mon Apr 2 21:51:52 IST 2007

On Mon, 2 Apr 2007 14:36:18 -0500
"Jim Coates" <jimc at laridian.com> wrote:

> Here is exactly what I need:
> Domain one and domain two both already come inbound to the same box
> via unique DNS mail records that both point to the same IP.  SendMail
> is currently configured to accept both domains and route them to
> local users (which is exactly how I want it to work on that end).
> I don't need to relay to another box, what I am looking to do is take
> mail originating from the mail server and send it outbound from a
> different IP.
> For example, if I send an email to you as "jim at domain.one" it will
> come from one IP address.  If I send you an email as
> "jim at domain.two", I want it to come from a different IP address.
> I have multiple public IPs available to my box, I just don't know if
> its possible to configure SendMail to always associate a particular
> outbound domain with one IP and another outbound domain with another
> IP.
> Does that make sense?
> What we are trying to do is separate out the email so that bonded
> sender information for one domain is not affected by the bounces and
> such from another domain.

I thought it was possible with Sendmail; however, not having used it in
years, I don't remember for sure anymore. It is possible in
Postfix-2.4, which has just been released. I get the impression thought
that you are not interested in trading MTA's.



	Someone who spends his junior year at college abroad.
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