On 2021/04/21 10:23, Neil Youngman via mailop wrote: > On 21/04/2021 11:00, Chris wrote: > > Aside from the possibility that the message is simply wrong, or the > > implementation broken, is your mail server acting like most other > > servers when presented with a failure (soft or hard)? > > > > Your posting seems to be that you give up after the second try. > > > > Most servers will try at least 5 times for such, only giving up after > > hours (sendmail defaults at 4 days). > > It doesn't behave exactly like a normal mail server, but it does retry > more than five times. Not all retries are from the same IP, but I have > observed that retries from the same IP don't get delivered. > > Neil Youngman
Retries from different IPs (even within the same /24 or so) will certainly cause problems for some greylisting software. Also make sure the addresses used in SMTP are identical for each try (say, not changing the sender address etc.) _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
