Hi,Wietse /etc/postfix/master.cf
smtp unix - - n - - smtp -o soft_bounce=yes -o smtp_fallback_relay=relayusa.example.net # When relaying mail as backup MX, disable fallback_relay to avoid MX loops relay unix - - n - - smtp -o smtp_fallback_relay=[192.168.18.181] -o soft_bounce=yes -o smtp_helo_timeout=5 -o smtp_connect_timeout=5 Logfile Jun 12 17:25:22 relaydx postfix/smtp[2623]: B7C0121: to=<r...@lkpoi.com>, relay= hotmail.example.com[192.168.18.36]:25, delay=0.03, delays=0.01/0/0.01/0.01, dsn=4.7 .1, status=SOFTBOUNCE (host hotmail.example.com[192.168.18.36] said: 554 5.7.1 <rel aydx.example.net[192.168.18.180]>: Client host rejected: Access denied (in reply t o RCPT TO command)) I change master.cf file, and try my best to test it.wait fo more than 10 minutes. The good thing is all the mail is in the defer queue when I set "-o soft_bounce=yes" in master.cf But still can't use other mail server to send mail that in the defer queue. I saw the patch in the mail lists and have no idea how to use it, I need your help.Thanks Tom 2012/6/12 Wietse Venema <wie...@porcupine.org> > Feel Zhou: > > Sorry about my big fronts. I'm not good at English. so I used Microsoft > > Word to check my English words right or not. then copy/paste to the mail. > > I will never do this again. I can use Google translate web page. > > Thank you all friend help me about this problem. I will try my best to > > understood what you give me the messages mean it. I need some time > > I will try many times to test how to send the mail in defer queue. Thanks > > again > > In China, It is 00?00am, It's dark outside. I will do the test after my > > wake up. Good night all my friend. Thanks again. > > I think that the translation worked well. > > If you have problem applying the patch, then you can try to contact > me off-list (my machine does not block mail from China). > > Wietse >