Hi, Actually I believe that there is a DNS problem on that MX server, cause PTR is set properly.
The delay is not on the delivery, but when my application connects to the MX SERVER and send the messages. When using ZOOM4U.COM.BR, my application sends only 2 messages per second and there is no limitation in that system. When I change the sender domain, the application almost burns the server with the very fast sending messages. The log file for the google account (the delivery worked cause there is no DNS problems there). Mar 15 11:14:22 mxcluster postfix/smtp[2891]: 8F8C3FAC35: to=<raf...@gmail.com>, relay=gmail-smtp-in.l.google.com[74.125.159.27]:25, delay=4.3, delays=0.53/0.01/0.52/3.2, dsn=2.0.0, status=sent (250 2.0.0 OK 1300198390 d10si21857046and.121) Again, the delay is when I connect to the SMTP to SEND the email FROM THE APPLICATION. The SMTP is sending messages really fast to other SMTPs. Thanks in advance. Rafael On Tue, Mar 15, 2011 at 11:10 AM, Wietse Venema <wie...@porcupine.org> wrote: > > Rafael Azevedo: > [ Charset ISO-8859-1 unsupported, converting... ] > > Hi Wietse! > > > > Thanks again for helping me! > > > > Here is the postfix log: > > > > # SLOW DOMAIN > > Mar 15 10:37:46 mxcluster postfix/smtpd[22804]: connect from > > srv01.iagentemail.com.br[189.38.86.124] > > Mar 15 10:37:46 mxcluster postfix/smtpd[22804]: 70E82E42D0: client= > > srv01.iagentemail.com.br[189.38.86.124] > > Mar 15 10:37:46 mxcluster postfix/cleanup[21751]: 70E82E42D0: message-id=< > > 8d3ee53c5d281ab3dae9471182931...@iagentemail.com.br> > > Mar 15 10:37:46 mxcluster dkim-filter[4513]: 70E82E42D0 "DKIM-Signature" > > header added > > Mar 15 10:37:47 mxcluster postfix/qmgr[27773]: 70E82E42D0: from=< > > reto...@iagentemail.com.br>, size=629, nrcpt=2 (queue active) > > Mar 15 10:37:47 mxcluster postfix/smtp[23002]: 70E82E42D0: host > > mx2.iagente.com.br[189.38.95.92] said: 450 4.7.1 Client host rejected: > > cannot find your hostname, [187.1.133.20] (in reply to RCPT TO command) > > Mar 15 10:37:47 mxcluster postfix/smtpd[22804]: lost connection after RSET > > from srv01.iagentemail.com.br[189.38.86.124] > > Mar 15 10:37:47 mxcluster postfix/smtpd[22804]: disconnect from > > srv01.iagentemail.com.br[189.38.86.124] > > The above message is rejected because 187.1.133.20 has no PTR record. > > You forgot the logfile record with the status=xxx and delay=yyy > of message 70E82E42D0. > > > > > # FASTER DOMAIN > > Mar 15 10:37:47 mxcluster postfix/smtpd[19313]: connect from > > srv01.iagentemail.com.br[189.38.86.124] > > Mar 15 10:37:47 mxcluster postfix/smtpd[19313]: 45B50E42F5: client= > > srv01.iagentemail.com.br[189.38.86.124] > > Mar 15 10:37:47 mxcluster postfix/cleanup[22025]: 45B50E42F5: message-id=< > > 950c281e36abb9600cdf730baff00...@iagentemail.com.br> > > Mar 15 10:37:47 mxcluster dkim-filter[4513]: 45B50E42F5 "DKIM-Signature" > > header added > > Mar 15 10:37:47 mxcluster postfix/qmgr[27773]: 45B50E42F5: from=< > > reto...@iagentemail.com.br>, size=630, nrcpt=2 (queue active) > > Mar 15 10:37:47 mxcluster postfix/smtpd[19313]: lost connection after RSET > > from srv01.iagentemail.com.br[189.38.86.124] > > Mar 15 10:37:47 mxcluster postfix/smtpd[19313]: disconnect from > > srv01.iagentemail.com.br[189.38.86.124] > > You forgot the logfile record with the status=xxx and delay=yyy > of message 45B50E42F5. > > Wietse
