I had a WinNT 4.51 SBS with exchange. I exported all the exchange mailboxes using exmerge.exe. I then upgraded to 2000 sbs, brought in 2 windows 2003 servers after I prep’d the domain. Long story short, I basically migrated the 4.51 sbs domain to a 2003 domain. Took a long time but it worked. Anyway. Once done I installed exchange 2003 and imported all the mailboxes. Now here is the problem. When the end user goes to reply to an email he/she received from an internal user prior to the upgrade, the email gets bounced back with no reason. If you click reply, and then right click over the name and click properties, there is nothing in the email addres tab. Now, if you create a new email, and selected them from the GAL, it works fine. Just a problem with emails received prior too the upgrade, and only ones received from internal users. Any ideas how to fix this??? Any and all help is greatly appreciated.
Thanks,
Woody H