On Tue, 15 Sep 2009, LuKreme wrote: > When trying to send a message with 46 recipients in the Bcc I get an > error from my MUA "The server mail.covisp.net" did not recognize the > recipients.
When $smtpd_recipient_limit is exceeded, Postfix says: 452 4.5.3 Error: too many recipients > When I look at the maillog on the server, the only thing I see > logged is: > > Sep 15 10:10:20 mail postfix/smtpd[8201]: connect from *home connection* > Sep 15 10:10:20 mail postfix/smtpd[8201]: AD911118AC34: client=*home > connection* > Sep 15 10:10:20 mail postfix/smtpd[8201]: disconnect from *home > connection* This is normal if the client just QUIT after seeing the above SMTP response. > So, I dug around and found that the smtpd_recipient_limit was set > pretty low (25). I increased it to 100 and the message was sent > through just fine. 25 is awfully low, especially if you wish to conform to certain sections of the RFC. FWIW, the Postfix default is 1000. > Is there some other place I could have looked to see that problem in > the logs? There is no 'problem' as far as Postfix is concerned, so nothing is logged. After sending the 452 to the client, Postfix retains a buffer of the 25 recipients it *did* accept. Instead of sending a QUIT (which is my suspicion), the client could just have issued the DATA command, and continued with delivery. Then, the client SHOULD have tried to deliver the message to the remaining recipients. Relevant reading, in case you are interested, from RFC 5321: http://tools.ietf.org/html/rfc5321#section-4.5.3.1.8 http://tools.ietf.org/html/rfc5321#section-4.5.3.1.9 http://tools.ietf.org/html/rfc5321#section-4.5.3.1.10 -- Sahil Tandon <[email protected]>
