553 sorry, that domain isn't in my list of allowed rcpthosts (#5.7.1)
This is the error message I get when trying to send message from newly configured Outlooks 2003 POP3 profile. Can send successfully to any email address in the domain of the host machine but cannot send to any email address at any other domain. Always get this message. Never had this problem before. Why is this happening and how to fix?
Running XP Pro