I'm a beginner at this... but i love to know more!
I have a mail log that i like to extract the connection hostname from.
I have sorted out all the intresting lines:
"
Dec 1 04:02:42 mailgw1 postfix/smtpd[15515]: connect from unknown[XXX.YYY.ZZZ.NNN]
"
But when i try to get the IPadresses to hostnames i just hit the brick wall 😞
I'm ending up with a list of "unknown[XXX.YYY.ZZZ.NNN]" and i just love to resolve that to a hostname and make a nice chart for the boss... and a clear list for the developer that are trying to change mail system...
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