Hello, I run an ISP, we have a 4 machine cluster running qmail-ldap with SpamAssassin and Virus scanning. Normally I block inbound port 25 traffic going to my dedicated bandwidth (t1, DSL..) customers. I set the customers domain MX record to point to my mailserver. I then scrub the mail and forward to their real mail server (normally exchange).
I have one customer who is complaining about lost mail. They have a support department sending them e-mail from a machine which has a forward and reverse A/PTR combo but no MX record. The domain has no MX record as well. Our mail server is configured with RETURNMXCHECK which is failing and sending the error back to the sender. My customer is not bitching at me to remove the check. The company says their mail server is configured properly. They list a bunch of RFCs they are in complance with. What ammunition do I have to tell my customer that what I'm doing is valid. I don't want to remove the checks but I would like to get the mail working. I'm assuming that this sender is having trouble mailing to everyone else that checks return MX records. The sending domain is 'intergralis.com' no MX records but does have A records. -Matt -- ---------------------------------------------------------------------- Matthew S. Crocker Vice President / Internet Division Email: [EMAIL PROTECTED] Crocker Communications Phone: (413) 746-2760 PO BOX 710 Fax: (413) 746-3704 Greenfield, MA 01302-0710 http://www.crocker.com ----------------------------------------------------------------------
