I have a customer in my database for email addresses. When we send emails to anyone in they're company. I get an error message that reads <company email address # 5.1.2smtp;554 5.1.2 <recipient email address>: Recipient address rejected: The reverse name of your IP address doesn't map back to the same IP> Does anyone know what this means and knows how to fix it? I'm stumped. I went to Exchange but the data base couldn't find an answer for me. TIA. Mike Henson mhenson@markitcompany.com

Looks like the PTR recored for the destination domain does not map back to the correct A record of the ip address.

Hi B.U.T.L.E.R, Sorry but I'm not up on the lingo. Can You explane in laymen what is happening? Is it on my servers end or is it the recipients end. Is there somthing that has to be changed in the exchange on my end? Thanks for any advice and help.