Outlook 2007 behind Exchange 2003 environment. I have a user trying to send an email to someone on the same domain. This user has two PC's, one desktop and one laptop, both on the domain. From the users desktop he can send emails with no problem. From the users laptop, when sending an email to ONE particular user he gets the following error:
Your message did not reach some or all of the intended recipients.
Subject: FW: Mortgage Message - (Loan Number: 293086406) - New Task Assigned
Sent: 7/13/2009 9:28 AM
The following recipient(s) cannot be reached:
firstname.lastname@example.org on 7/13/2009 9:28 AM
The format of the e-mail address is incorrect. Check the address, look up the recipient in the Address Book, or contact the recipient directly to find out the correct address.
Again, it's isolated to his laptop - which confuses me. Little help please?