Download smtpdiag.exe from microsoft.com and test the mx from an outside source.
The command line is
[smtpdiag "administrator@123.com" "administrator@246.com" /v]
This will return all the results to confirm that your smtp (25) is correct.
If you were previously using POP3 to download email were the clients using the exchange or pst files?
Each User requires a FQDN email address (test@246.com) and I'm sure they have one.
Please post the mx domain if you require further.
Another test location is mxtoolbox.com
GS
Main Topics
Browse All Topics





by: markusdamenousPosted on 2008-12-23 at 01:27:47ID: 23232265
You need to check the format that the mailboxes are using in SBS.
Check against a particular User their mailbox ALIAS. Try using this, and also try postmaster@domain.com