I have a user connecting to the internet via a wireless router. He has a
bellsouth.net account that he is using via POP3, along with two other POP
accounts that use the bellsouth account for SMTP. He can receive emails fine
on all three accounts, but he cannot send emails. He can successfully send
an email to himself at the bellsouth account, but any other address I've
tried comes back with a System Administrator error syaing that the email
could be sent using any of the three accounts. All setting s have been
checked, rechecked and checked again. I have been on the phone with
Bellsouth and they don't knwo what the problem is either.

Any help?

Thanks in advance,

John