outlook for mac cannot connect to stmp.comcast.net for outgoing mail

So I set about discovering exactly what changed on the Comcast servers.

The settings that control security are usually in the same place were you specify the outgoing mail server (smtp options or sending mail).

As noted in the link, the smtptlssecuritylevel option should be used with newer versions of Postfix.

There are no warnings of the message not being sent or any other error messages about account setup, and TLSSSL has been selected in the settings window (it doesnt recognize the account without it).

I have also downloaded Thunderbird and loaded my email account into Apple mail on my wifes computer.

The email acts like it was successfully sent, but the recipient doesnt get it.

The strange thing is that this problem ONLY occurs with my email address.

If I add my wifes mail account to my mail client.the only settings change being her email address and password.

Ive also added my gmail account to my Apple mail client, and it sends messages from that account perfectly.

Ive been on the phone with Comcast and of course they have no answer.

My sender and recipient E-Mail addresses were accepted but the mail never arrived at the intended destination.

I just tried with my Comcast SMTP conector a few days ago and lo and behold it works now.

Outlook For Mac Cannot Connect To Stmp.Comcast.Net For Outgoing Mail