We have an exchange server that recently died. I built a new server with the same operating system, reinstalled exchange 2003 with the /disasterrecovery option, installed SP2 with the disaster recovery option and then restored the exchange stores from a backup I had taken with backup exec.
When the server came online after a reboot I manually activated the stores. Workers can send mail to the Internet but not each other. They also cannot receive mail from the Internet. Calendar is working and Outlook clients are connecting to the server with no problem.
If I telnet to the mail server (internally) I can send a message, the server accepts it but the message never gets to the mail account.
Tech info: Windows 2003 SP2, Exchange 2003 SP2