Windows Mail account issue

Originally when I called Metrocast to set up our new email accounts in my new computer, both accounts were set up under my log in. When we realized what had happend, we created the second user log in for my husband and i deleted his email from my log in. Unfortunately, this is not working now. It asks for my user name and password to access that email account but then no email is coming to his email address.

What Have I Done wrong?

Since my first post, i have followed instructions i found through Vista forum to delete Windows Mail and started over.

I created my email under my log in. Created my husbands email under his log in. That did not work either. Still asks for MY USER NAME AND PASSWORD to access HIS email.

SO... I went back to my log in and added his email back into my account and followed instructions for RULES. Went back to his account and email and sent an email. That worked, But when I tried to send an email to him (from my account) he does not receive email.

HELP!!!