On 10/2/2017 10:04 AM, Kevin A. McGrail wrote: > On 10/1/2017 8:15 PM, MRob wrote: >> Hello, short of Per-Recipient Data Responses (PRDR) becoming >> standard, may I ask how administrators are faking it? I understand >> you can temp-fail all but the first rcpt-to, but how to do this in >> Postfix? Does it require a custom milter? Surely there must be a >> published solution somewhere? > I do it in a milter two ways. One, I temp-fail all but one > recipient at a time which I find problematic or two, I create a new > message and reinject it to the original recipients. I do this so I > can have per user settings on delivery and spam settings. DKIM > makes this tough. > > So I'm interested if you can do this in postfix as well. > > Regards, > KAM
http://www.postfix.org/postconf.5.html#smtpd_recipient_limit