I use windows live mail for 3 of my accounts 2 of them are comcast accounts.   i just discovered my main account isnt sending mail to people.  the other email account and hotmail account have no problems sending email .  I even tried to do it on my old windows 7 pc which still has windows live 2011 on it.  could send from other comcast and hotmail but not my main comcast account.  i am able to send from this comcast email using comcast website.  i checked and rechecked my ports on both pc's and it is the same. 

I have no idea how long this has been happening for or how to fix it so I am hoping someone here can help me be able to send emails from windows live.

I am able to send from this account from the Comcast.net email client so Comcast says the problem must be with windows live.

thanks

Laurie