Check your mail protocol settings.
If you receive a message stating that your POP3 or SMTP host cannot be found, your Post Office Protocol 3 (POP3) or Simple Mail Transfer Protocol (SMTP) account information might be incorrect.
To verify your POP3 and SMTP settings
- On the Tools menu, click Accounts.
- On the Mail tab, click the account that you were using when you received the message, and then click Properties.
- On the Servers tab, make sure that the server settings include the correct full names of your servers, as provided to you by your Internet service provider (ISP).
Are you using virus-protection software?
Dr. Solomon's Anti-Virus Deluxe NetGuard and Norton AntiVirus 2000 can interfere with sending and receiving messages.
Note
- The software programs discussed here are created by vendors other than Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.