On Fri, May 25, 2012 at 07:22:47PM +0200, Georg Schönweger wrote: > I changed now "myorigin" to our main domain which is hosted > external. As this domain has a catch all mail address every sender > of my Postfix server should be valid now (can receive mails). > Port 25 is closed now. > > But the problem with rejected bounce mails still remains; If i > send a mail with sender [email protected] via my postfix server > to a non existing address a bounce mail will be generated.
This is proper. > [email protected] is hosted by a company. Sometimes they reject > the bounce mail. Full log; > > May 25 18:57:07 susi2 postfix/cleanup[9312]: AAC41CACB54: > message-id=<[email protected]> cleanup(8) is never the first logging for a message received; it would be either pickup(8) or smtpd(8). But no matter. You did describe the issue well enough. > May 25 18:57:07 susi2 postfix/qmgr[9014]: AAC41CACB54: > from=<[email protected]>, size=1526, nrcpt=1 (queue active) > May 25 18:57:07 susi2 postfix/smtp[9313]: AAC41CACB54: > to=<[email protected]>, relay=none, delay=0.15, delays=0.15/0/0/0, > dsn=5.4.4, status=bounced (Host or domain name not found. Name service > error for name=dasfdasf.asd type=AAAA: Host not found) > May 25 18:57:07 susi2 postfix/cleanup[9312]: C67A9CACCAE: > message-id=<20120525165707.C67A9CACCAE@my-postfix-server> > May 25 18:57:07 susi2 postfix/bounce[9314]: AAC41CACB54: sender > non-delivery notification: C67A9CACCAE > May 25 18:57:07 susi2 postfix/qmgr[9014]: C67A9CACCAE: from=<>, > size=3549, nrcpt=1 (queue active) > May 25 18:57:07 susi2 postfix/qmgr[9014]: AAC41CACB54: removed > May 25 18:57:08 susi2 postfix/smtp[9313]: certificate verification > failed for mx.domain.tld[IP.OF.OUR.PROVIDER]:25: untrusted issuer > /C=US/O=RTFM, Inc./OU=Widgets Division/CN=Test CA20010517 > May 25 18:57:08 susi2 postfix/smtp[9313]: C67A9CACCAE: > to=<[email protected]>, relay=mx.domain.tld[IP.OF.OUR.PROVIDER]:25, > delay=0.44, delays=0/0/0.38/0.05, dsn=5.1.0, status=bounced (host > mx.domain.tld[IP.OF.OUR.PROVIDER] said: 550 5.1.0 EGx71j00D08HtnS01Gx7D1 > dominio non valido / invalid domain (in reply to MAIL FROM command)) > May 25 18:57:08 susi2 postfix/qmgr[9014]: C67A9CACCAE: removed Your provider doesn't want to accept these bounces, for whatever reason they might have. Yes, their rejection message is wrong. > Could this be a backscatter problem? I read a little bit about > backscatter, but i have no idea how tho check and fix this. If you're only sending these bounces to your own address[es], you are not a backscatterer. If you're sending bounces everywhere, you might be. From what you have said here, I doubt it is backscatter. Perhaps you want to use another sender domain, one you control and host, to receive your bounces. Or, as suggested upthread, consult with the provider about their policy. -- http://rob0.nodns4.us/ -- system administration and consulting Offlist GMX mail is seen only if "/dev/rob0" is in the Subject:
