On Feb 5, 2018, at 05:26, Allen Coates <znab...@cidercounty.org.uk> wrote: > > Is this a reliable bad-host detector?
It is a very good indicator of spam. It is also an indicator of a misconfigured mail server (in the case of spammers, intentionally so). Anyone kitting this error on your postfix is going to be unable to send mail to the majority of mail servers. OT: I'd love an option to split these kinds of errors into a separate log file. I keep maillogs for a long time, but this Gary age I'd love to dump after a day or two). -- This is my signature. There are many like it, but this one is mine.
