The customer_domain.com actually does have an A record. But it is not pointing to our Imail server.
I actually just heard from the customer and he spoke to the mail admininistrator of the receiving domain and indeed they had their DNS reverse lookup set too tightly. They relaxed it a bit and now mail is sent without problems to that domain. -----Original Message----- From: R. Scott Perry [mailto:[EMAIL PROTECTED]] Sent: Wednesday, May 15, 2002 4:11 PM To: [EMAIL PROTECTED] Subject: Re: [IMail Forum] sending from virtual domain and reverse DNS lookup >Hi all. I have a customer who tries to send mail to this particular >destination that has a very strict mail server. The mail server checks to >see if the hostname after HELO has a valid PTR matching with the IP address >of our Imail server. > >Our server says HELO customerdomain.com and the receiving server says >something like "your DNS record does not match". There is a PTR for the IP >address of our server, but it resolves to our actual server's host name. > >Is there any way to make Imail announce itself using its own domain name >instead of virtual domain name? There should be no problem with your IMail server sending "HELO customer_domain.com", if it accepts mail for that domain, no matter what the PTR record is. Otherwise, you couldn't have mailservers handling virtual hosts. The problem is probably that "customer_domain.com" doesn't have an A record. The HELO is supposed to send a host name, which means that it should have an A record. -Scott --- Declude: Anti-virus, Anti-spam and Anti-hijacking solutions for IMail. http://www.declude.com --- [This E-mail was scanned for viruses by Declude Virus (http://www.declude.com)] Please visit http://www.ipswitch.com/support/mailing-lists.html to be removed from this list. An Archive of this list is available at: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Please visit the Knowledge Base for answers to frequently asked questions: http://www.ipswitch.com/support/IMail/ Please visit http://www.ipswitch.com/support/mailing-lists.html to be removed from this list. An Archive of this list is available at: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Please visit the Knowledge Base for answers to frequently asked questions: http://www.ipswitch.com/support/IMail/
