You just need to verify that reverse DNS for all the domains is correct.
Regards, Michael B. Smith MCSE/Exchange MVP http://TheEssentialExchange.com From: Jonathan Gruber [mailto:[EMAIL PROTECTED] Sent: Friday, May 23, 2008 11:20 AM To: MS-Exchange Admin Issues Subject: Hosting Multiple domains in Exchange 2003 We are currently hosting multiple domains on an exchange 2003 box and have run into an issue. We set up the box using domain a, and the fqdn listed in the virtual smtp server is mail.domaina.com. A user has sent an email to a bellsouth account using domainb which is also hosted on this server and the mail is timing out. When a test is sent from domain to the bellsouth.net address it goes through, so I assume that the reverse dns lookup bellsouth is doing is failing. My question is, what is the best way to resolve this, multiple virtual servers, configure external dns servers? I haven't had an issue sending mail to any other domains except bellsouth.net. Jonathan Gruber Network Administrator J.B. Long Inc. 610-944-8840 x.213 484-637-1978 direct ~ Ninja Email Security with Cloudmark Spam Engine Gets Image Spam ~ ~ http://www.sunbeltsoftware.com/Ninja ~
