To cut a long story short, we have a SBS2003 with an exchange server, which fetches e-mails from our mail host through the POP3 Connector and into a user account.
This user account is used by several employees in their outlook clients, to read and write e-mails.
In the exchange system manager, we can see that the user account mailbox holds around 37.000 mail objects, with a size of 4GB´s.
The problem is, that when we try to send an e-mail outside the company, it reaches the pop3 connector, which cannot deliver it to the user. Afterwards, the mail sender will receive an e-mail from the postmaster, saying that it could not be delivered.
If we in the POP3 Connector try to forward the e-mail to another account, the e-mail goes straight through without any problems.
We have tried with a 3. party POP3 connector, but with the same results. It says that the user account is invalid.
Any help would be appreciated!