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So here is my situation. I have this 2 DNS (say a.org and b.org) with the same IP address (both A record) tied to this box. We have Google mail handing our a.org emails . I want b.org emails to forward to users at a.org emails . My sendmail is getting confused and is delivering all b.org emails locally instead of forwarding them to a.org (which is specified in the .forward) . What do I do from the sendmail side to force external delivery . Thanks Much

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You're seeing another instance of SMTP for multiple domains on virtual interfaces. –  mad_vs Feb 5 '11 at 7:54

1 Answer 1

  • add "FEATURE(`mailertable')" to sendmail.mc
  • run m4(make) to install new config, then restart sendmail
  • add to /etc/mail/mailertable ".b.org smtp:[aspmx.l.google.com]"
  • makemap hash /etc/mail/mailertable < /etc/mail/mailertable
  • test
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