Russell Coker via luv-main <luv-main@luv.asn.au> writes:
https://rimuhosting.com/knowledgebase/linux/mail/greylisting%20with%20postgr...
Are you already using postscreen? 15:05 <knoba> SMTP triage server available in Postfix 2.8, see http://www.postfix.org/POSTSCREEN_README.html and http://www.postfix.org/postscreen.8.html Last time greylisting came up (many years ago), the folks on Freenode's #postfix (who are generally very sensible) basically said Don't bother doing greylisting, postscreen is better in every way. I'm using postgrey still because my postfix is f'ing ancient. According to my postgrey config, ca. 2011, @bigpond.com & @optusnet.com.au need to bypass postgrey due to brain damage in their MTA pools (they retry from different server IPs).