Your problem appears to be with the server end at your ISP.
Make sure you have the correct settings.
If they are changed that is why you cannot send emails.
Why not test with another email account to see if that works?
Or contact your ISP tech support.
If you are using a router you may have to use the IP address instead of POP & SMTP.
Is your email from a web-based server like Hotmail or from a Cable or DSL ISP?
You did not provide sufficient info for anyone to make a more informed answer.
I am unable to send messages with outlook express. No problem with receiving. Have tried almost everything.
Every once in a blue moon I am able to send one then when I log back on unable to send. Have noticed that my settings have been switched. I keep resetting them, but somehow they end up changed. I have Microsoft Outlook installed as well, but unable to send messages there also. Do I need to uninstall one or the other or do something else? I am running XP. (outlook express 6)
Thanks,
m

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