I am also finding that when I do an nslookup on many of the DNS servers that are listed for the domain of the sender it returns root servers lists rather than resolving the IP.
Todd ----- Original Message ----- From: "R. Scott Perry" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, July 03, 2003 6:37 PM Subject: Re: [IMail Forum] Still getting bounced mail > > >We are still getting email sent from our servers bounced back. The IMail > >log shows - > > > >07:03 07:42 SMTP-(000006D8) >MAIL > >FROM:<<mailto:[EMAIL PROTECTED]>[EMAIL PROTECTED]> > >07:03 07:42 SMTP-(000006D8) 553 5.1.8 > ><<mailto:[EMAIL PROTECTED]>[EMAIL PROTECTED]>... Domain of sender > >address <mailto:[EMAIL PROTECTED]>[EMAIL PROTECTED] does not exist > >07:03 07:42 SMTP-(000006D8) ERR undeliverable 553 5.1.8 > ><<mailto:[EMAIL PROTECTED]>[EMAIL PROTECTED]>... Domain of sender > >address <mailto:[EMAIL PROTECTED]>[EMAIL PROTECTED] does not exist > >07:03 07:42 SMTP-(000006D8) SMTP_DELIV_FAILED > >07:03 07:42 SMTP-(000006D8) >QUIT > > > > > >My understanding is that its DNS issue. > > Almost. This *should* be a DNS issue. However, that specific error > message isn't defined, and could mean anything. So essentially it's the > same as if their postmaster told you "Domain of sender address > <mailto:[EMAIL PROTECTED]>[EMAIL PROTECTED] does not exist" (which is subject > to interpretation). > > >The remote server cannot locate/resolve the domain and so it thinks that > >it does not exist. > > That could be. But it seems that some odd software has come about recently > that doesn't like some domains whether or not their DNS is set up properly. > > >I spoke with an email admin two days ago that was good enough to reboot > >his DNS servers. After he did that we were able to send to his domain > >without problems for a while, now we are getting bounces again. . > > That likely either means [1] They have flaky DNS, or [2] You have > intermittent DNS issues. > > >We are having this problem with many larger companies, reliant.com, > >pbsolar.com, netzero.com to name a few. > > If you de-munge the information, we can help. What is the sender address? > > -Scott > --- > Declude JunkMail: The advanced anti-spam solution for IMail mailservers. > Declude Virus: Catches known viruses and is the leader in mailserver > vulnerability detection. > Find out what you have been missing: Ask for a free 30-day evaluation. > > --- > [This E-mail was scanned for viruses by Declude Virus (http://www.declude.com)] > > > To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html > List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ > Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ > > To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
