<div dir="ltr"><div>This may help:<br><br><a href="http://drjohnstechtalk.com/blog/2011/09/obscure-tips-for-sendmail-admins/">http://drjohnstechtalk.com/blog/2011/09/obscure-tips-for-sendmail-admins/</a><br><br></div>route by recipient is easy. You want the hard stuff! What is discussed in the article makes sense but I've never had need to use it.<br>
</div><div class="gmail_extra"><br><br><div class="gmail_quote">On Wed, May 1, 2013 at 4:23 PM, Lightner, Jeff <span dir="ltr"><<a href="mailto:JLightner@water.com" target="_blank">JLightner@water.com</a>></span> wrote:<br>
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<p class="MsoNormal">Note: I am NOT asking about aliasing of INBOUND emails. I am asking about emails being sent OUTBOUND.<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">We have a need to send emails via different internal email relay servers based on the return sender associated with the email. Previously I did this in HP-UX using sendmail’s “smarttable” facility.<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">We now need to replicate the setup on RHEL5 which also uses sendmail. I haven’t really had a chance to look into it myself as I’m tasked with other priorities but the co-worker that tried to do this last year and the new one trying to
do it now don’t seem to be getting anywhere in replicating this.<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">The idea would be if I send an email and set the return sender as say
<a href="mailto:billybob@mydomain1.com" target="_blank">billybob@mydomain1.com</a> it would relay through our MS Exchange server. On the other hand if I set the return sender as
<a href="mailto:billybob@otherdomain.com" target="_blank">billybob@otherdomain.com</a> it would relay through a separate Sendmail server I have for that purpose. The difference here is that the Exchange server and Sendmail both send their email via different internet facing
IPs.<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Does anyone know how to do this in Linux Sendmail successfully? Is there a better way to do it these days in sendmail? I setup the UNIX stuff around 2006 and its been working ever since. Maybe by use of a milter?<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Please don’t suggest we move to Postfix unless you know how to accomplish the task described above in Postfix.
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