129.250.227.175 reverses to mail.colony1.net mail.colony1.net resolves to 129.250.227.175
Even a truly paranoid server should be satisfied with the above.
This is what we call in postfix "A + PTR" matching, and it is the best practice for outbound MTAs. It is a great aid in blocking sender forgeries of a list 3500 "frequently forged sender domains" that are also know to have A + PTR matching.
Len
To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
