Who is your ISP (aol, compuserve, earthlink, etc)?

Do you have messages in your Outbox?

If so, does deleting them help?

Are you using outlook or outlook express?

What do you have for the following settings?

Incoming Mail Server (POP3)

Outgoing Mail Server (SMTP)

In Outlook Express:

Select "Tools" on the top of the Outlook screen

Select "Account" from the drop down menu

Select the "Mail" Tab

Select your email account and click "Properties"

Select the "Servers" tab

In Outlook:

Select "Tools" on the top of the Outlook screen

Select "Email Accounts(may need to click arrows to get there)

Select View or Change Email Account and click 'Next'

Select your email account and click "Change"