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I'm trying to figure out how to remove/hide the originating source IP address of every mail being sent using OpenSMTPD?

To do the equivalent in postfix, it would be:

http://integer13.wordpress.com/2013/01/03/hide-your-source-ip-with-emails-relayed-by-postfix/

http://blog.tenak.net/2011/04/2011-04-dont-send-client-ip-postfix.html

http://serverfault.com/questions/413533/remove-hide-client-sender-ip-from-postfix

I'm using OpenBSD.

Thanks!

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  • You talk about opensmtpd and tagged your question with postfix. What do you use now?
    – sebix
    Aug 5, 2017 at 14:38
  • I'm using postfix, and would like to know how to do the same thing in OpenSMTPD. Perhaps there would be someone who knows both and can help me to do the same thing in OpenSMTPD.
    – ikevin8me
    Aug 5, 2017 at 14:45
  • So your question is about opensmtpd. Then I can't answer it.
    – sebix
    Aug 5, 2017 at 14:50

1 Answer 1

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https://www.mail-archive.com/[email protected]/msg01483.html

(In the following, mask-source was changed to mask-src to reflect the current option name)

"To some extent, yes. You can use "mask-src":

listen on [...] mask-src

This will hide the IP address of the client submitting the message:

Received: from localhost (localhost [127.0.0.1]); by debug.poolp.org (OpenSMTPD) with ESMTP id 2028cae9; for [email protected];

Will become:

Received: by debug.poolp.org (OpenSMTPD) with ESMTP id f8e66416; for [email protected];"

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