i have a windows 2003/exchange 2003 system. I cretaed a new uer yestereday along with a mailbox in exchanghe. when i try to send this user a message from the outside i get SMTP error:
#5.5.0 smtp;550 <email@example.com> No such user here>
as i said before the mailbox is there, proven by optioon shown in exchange tasks on the user's properties. I had an internal user send a message and it made it there..
The mailbox does show up in ESM. the properties of the user show the proper name and email domain in email addresses user property.. Basics seems to be covered here unsure where to go from here..