I can't send emails

I need help cannot send email. it tells me that its en error ?

Call Comcast.

Call Comcast.

Change the SMTP port to 587 and make sure: My Server RequiresAuthentication is

Change the SMTP port to 587 and make sure: My Server Requires
Authentication is checked.

How do I set up/configure Outlook Express & Windows Mail for Comcast
email?
http://www.comcast.com/customers/faq/FaqDetails.ashx?Id=2288
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Bruce Hagen
MS-MVP [Mail]
Imperial Beach, CA