* Simon Brereton <simon.buongio...@gmail.com>: > Hi > > I have a line like this in my logs: > mail #554 5.7.1 <SPEXCH07.sp.com>: Helo command rejected: Host not found ##
~$ host SPEXCH07.sp.com Host SPEXCH07.sp.com not found: 3(NXDOMAIN) > This is clearly because I have reject_invalid_helo_name in my main.cf Yes. > Unfortunately, the fools at steelpartners.com have decided it's quite > okay to helo with sp.com (which actually resolves to Scottish Power). > I'm reluctant to remove this as it stops about 25% of my spam > attempts. I thought about adding it to /etc/postfix/helo_checks but > that is checked AFTER permit my networks, so it wouldn't do any good - > right? Nope. Or at least: I cannot tell for sure, since you never showed your "postconf -n" output! > If I added in a check_helo_access before reject_invalid_helo_name that > would work, yes? Yes. > Or would it be better to turn that line into warn_if_reject? That would disable it globally, but still clutter your log - not what you want. -- Ralf Hildebrandt Geschäftsbereich IT | Abteilung Netzwerk Charité - Universitätsmedizin Berlin Campus Benjamin Franklin Hindenburgdamm 30 | D-12203 Berlin Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962 ralf.hildebra...@charite.de | http://www.charite.de
