On Mon, 13 Jul 2009, Sahil Tandon wrote: > On Mon, 13 Jul 2009, Jeff Lacki wrote: > > > Im not nearly as versed in postfix as I would like to > > be. Ive tried to figure this log message out but Im not > > sure whats really going on: > > > > Jul 13 23:36:08 mysvr postfix/smtpd[14133]: NOQUEUE: reject: RCPT from > > mms.nextel.com[170.206.225.68]: 450 4.7.1 > > <adcvibq01.messaging.nextel.com>: Helo command rejected: Host not found; > > from=<> to=<nob...@myserver.com> proto=ESMTP > > helo=<adcvibq01.messaging.nextel.com> > > > > Im unsure if this is nextel.com replying back telling me > > that my helo is invalid due to an invalid host and/or > > smtpd (not smtp) is logging the above line. Your server is rejecting the > message. > > http://www.postfix.org/postconf.5.html#reject_unknown_helo_hostname > > % host adcvibq01.messaging.nextel.com > Host adcvibq01.messaging.nextel.com not found: 3(NXDOMAIN)
And FWIW, the from=<> suggests that the nextel.com server is trying to deliver a bounce to nob...@myserver.com. -- Sahil Tandon <sa...@tandon.net>