They actually have ONE MX record that points to a dual homed server [1]. The 64.213.243.212 address does not respond to port 25. If your server tries that one first and cannot get a response, it won't try the other IP, because that host is not responding. They need to clean up their DNS records that they publish to the Internet.
Serdar Soysal [1] Of course, it could also be a weird attempt to expose more than one mail server to the Internet by unskilled gorillas, but I wanted to give them the benefit of the doubt. -----Original Message----- From: Lynne July [mailto:[EMAIL PROTECTED]] Sent: Monday, April 15, 2002 3:58 PM To: Exchange Discussions Subject: DNS for wbpr.com Our client, wbpr.com, appears to have issues with their DNS records. They have 2 MX records with the same preference, and one of the boxes (64.213.243.212) does not respond. Of course, *my* DNS server tries to connect to that one first, resulting in the dreaded "Host Unreachable" error. The 2nd IP is never attempted. If I hard code the good IP (196.42.23.4) in the IMS, magically the mail delivers. Of course, the customer claims no one else on earth is having problems sending them mail. Obviously it's a DNS issue - but is it *my* DNS server's fault that it never looks for the 2nd IP address, or is it their problem? (dnsstuff.com couldn't even connect to their mail server, so I'm voting for it's their problem.) Many thanks. Lynne July _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED]
