Dnia 21.11.2019 o godz. 15:54:04 Fazzina, Angelo pisze: > > Nov 21 09:00:15 mail5 postfix/smtpd[31265]: lost connection after CONNECT > from unknown[unknown] > Nov 21 09:00:15 mail5 postfix/smtpd[31265]: disconnect from unknown[unknown]
CONNECT indicates that something tried to connect to your SMTP server as if it were a HTTP proxy. I see a lot of such stupid attempts in my logs, because I run submission on a non-standard port. What is strange is that "unknown[unknown]" part - looks like Postfix wasn't even able to determine the IP address of the connecting client??? -- Regards, Jaroslaw Rafa r...@rafa.eu.org -- "In a million years, when kids go to school, they're gonna know: once there was a Hushpuppy, and she lived with her daddy in the Bathtub."