Exchange 2003 Multiple Domains
Posted on 2010-01-12
Exchange 2003 Enterprise.
Some mail servers that perform extensive lookups (DNS, rDNS, mx, SPF, txt,) for our Exchange server will generate various
SMTP errors when accepting mail for delivery from our Exchange server when the recipients primary email address from our Exchange server is not our Exchange organizations default recieving domain.
(Our server recieves mail for 123.com and ABC.com, 123.com is the default policy email address domain, a user sho has ABC.com as the default email address may recieve email deliverability issues because of this..)
How should an Exchange 2003 server / organization be implemented or configured to alleviate this issue?
Is there a 3rd party solution or add on?