Dear members of postfix-users, can anyone of you please explain to me what the following log entry means:
postfix/smtpd[8558]: improper command pipelining after QUIT from unknown[64.8.20.35] I do know what command PIPELINING is, that it is offered in response to an EHLO and that Postfix 2.6 keeps track of improper pipelining on a per session basis (see release notes, feature 20090228). But I am not sure how a client can transmit additional commands after it sent a QUIT to the server. Is that some kind of timing issue, my hardware perhaps being too slow? FWIW, the only restriction I have that mentions pipelining is: smtpd_data_restrictions = reject_multi_recipient_bounce reject_unauth_pipelining I will happily provide all of postconf -n and any lookup tables as per DEBUG_README if that should be necessary. Cheers Stefan
