All I was wondering if anyone has getting this message <YOUROLDDOMAIN.com #5.5.0 smtp;521-EHLO/HELO from sender MYIPADDRESS does not map to YOURNEWDOMAIN.com in DNS>, part of the reason my be is that we bought out a small company (123.com) and build a new domain called abc.com. We are transitting 123.com email from Exchange 5.5 to Exchange 2003, I have gotten ADC setup already and it working fine. I am just wondering why I can't send any mail or recieve any emails? I have MX records pointing mail.123.com to the old server and mail2.123.com pointing to the new server. I have check and register the correct IP address, just to make sure I went up to DNSreport.com and look there and it's fine. Any idea what I might be doing wrong? TIA
