Postfix $smtpd_banner rules

Posted by horen on Server Fault See other posts from Server Fault or by horen
Published on 2014-06-10T14:22:57Z Indexed on 2014/06/10 15:27 UTC
Read the original article Hit count: 172

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postfix

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smtp

For monitoring purposes I would like to add the IP address to the Postfix smtpd_banner:

smtpd_banner = $myhostname ESMTP $smtp_bind_address

which works and outputs:

220 mail.mydomain.com ESMTP 123.456.789.0

Now I am wondering if there are any (negative) repercussions to expect. I couldn't find anything about it in the RFC docs.

The Postfix docs add another parameter ($mail_name) in their example, so I think I am fine. I just want to verify that my syntax is correct and is allowed.

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