I have an exchange server that some users log into as a pop3 mail server. One of my users gets the following message:
Receiving’ reported error (0x800CCC90): ‘your incoming (POP3) e-mail server has reported an internal error. If you continue to receive this message, contact your server administrator or Internet service provider (ISP). The server responded: =20’
It was working fine until today. Any ideas? Thank you!