Cannot Send Email thru Outlook Express - Avast!

It’s odd I can receive emails. However when I tried to send one I get this message. It happen after the one of the updates. Can anyone help me with this?

ISP Earthlink - Mindspring Email Account
Connection - DSL

http://www.myfilestash.com/userfiles/CalintzJerevinan/OutlookExpressError.JPG

The server address is misspelled (stmp instead of smtp).

Eye of the hawk Vojtech ! Good work !

Heidelloon - as Vojtech already suggested, change that SMTP address from wrong one stmp.mindspring.com to proper one smtp.mindspring.com

Cheers !