Reverse DNS Lookup and EHLO greeting in MS Exchange 2003?
Posted on 2005-03-01
I am running Microsoft Exchange 2003 Std. Edt. How can I change the greeting my server displays when other e-mail servers send to my e-mail server? I would like to prevent my server name from being disclosed. If it is possible to change the greeting I plan to use mail.mycompany.com as my mail server name. How can I change the mail greeting disclosed to mail servers?
Because many company e-mail servers are now requiring a successful reverse DNS lookup, I plan to have my ISP create a PTR record for my mail server. Should the PTR record resolve to the server name disclosed in the EHLO greeting? As it stands now, the greeting disclosed to mail servers includes my Exchange server's FQDN which includes my internal AD domain name.