I have Postfix installed, Whenever my email bounces back in the header information it is showing private ip (internal infrastructure), which i wanted to eliminate

Reporting-MTA: dns; xxxxx.xxxxxx.com

Final-Recipient: rfc822;ajkdafjhkfsd@xxxxxx.com Action: failed Status: 5.0.0 (permanent failure) Remote-MTA: dns; [] Diagnostic-Code: smtp; 5.1.0 - Unknown address error 550-"This user doesn't have a in.com account" (delivery attempts: 0)

Please help if i will be able to eliminate or strip private ip address.


Removing header information outside the guidelines in the RFC is not advisable; it seems you are bouncing this message inside your local network, after already accepting it at the edge.

You should NEVER accept mail you cannot deliver; instead, reject unknown recipients on the MX host.

  • And you're saying what ? – adaptr Apr 11 '12 at 15:37
  • Thanks "adaptr", As i have been going through RFC rfc-ref.org/RFC-TEXTS/1894/chapter2.html in the point 2.3.5 it is mentioned that the Remote-MTA field is optional. So now how can I eliminate that from my bounce message. – bvishal4u Apr 11 '12 at 18:51
  • That wasn't really my point - the point is that an MTA should interfere with a message's content as little as possible. Have you solved the incorrect recipient acceptance issue yet? – adaptr Apr 12 '12 at 9:12

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