westchester › Question about Outlook Express

Cant send messages An unknown error has occurred. Server error 554. Comcast has checked pop and smtp settings.

An unknown error has occurred.

Subject 'test'
Server Error: 554
Server Response: 554 omta02.westchester.pa.mail.comcast.net comcast Port 25 not allowed - http://customer.comcast.com/help-and-support/internet/email-client-programs-with-xfinity-email/
Server: 'smtp.comcast.net'
Windows Live Mail Error ID: 0x800CCC6F
Protocol: SMTP
Port: 25
Secure(SSL): No

An unknown error has occurred.

Subject ''
Server Error: 554
Server Response: 554 omta01.westchester.pa.mail.comcast.net comcast Port 25 not allowed - http://customer.comcast.com/help-and-support/internet/email-client-programs-with-xfinity-email/
Server: 'smtp.comcast.net'
Windows Live Mail Error ID: 0x800CCC6F
Protocol: SMTP
Port: 25
Secure(SSL): No

I also have Windows Live Mail (Windows 7) and my mail is also stuck in the outbox. This is the error message I receive:

Server Error: 554
Server Response: 554 omta02.westchester.pa.mail.comcast.net comcast Port 25 not allowed - http://customer.comcast.com/help-and-support/internet/email-client-programs-with-xfinity-email/

Server: 'smtp.comcast.net'

Windows Live Mail Error ID: 0x800CCC6F

Protocol: SMTP

Port: 25

Secure(SSL): No

What can I do?

Marcie