Send one to yourself and see what happens. If you get it, there is a problem
either with the recipients address or ISP. Perhaps they have a mailbox quota
that has been reached.

If you don't get the message you send to yourself, post the entire
*Undeliverable* message you receive.
--
Bruce Hagen
MS MVP - Outlook Express
~IB-CA~

"joanne morgan" wrote in message
...
I am unable to send emails. Message received 'mail undeliverable' when I
know it to be a correct email address.