Postfix snapshot 20100916 fixes one tiny buglet in postscreen, and improves the logging for pregreeting spambots. If nothing else comes up, this will be the last update in a while.
Wietse Bugfix (introduced 20100914): the "postscreen_greet_wait" delay speedup worked only for DNSBL listed sites. File: postscreen/postscreen_dnsbl.c. Workaround: better handling of pregreeting spambots. The postscreen built-in SMTP engine no longer sends a 220 banner to a client that falls into the pregeet trap. This eliminates many "non-SMTP command" records in postscreen logging, as the SMTP client and server no longer get out of sync. It also results in better logging of sender/recipient information. File: postscreen/postscreen-smtpd.c.