We have seen a few questions about connecting to Comcast.net email from Zimbra Desktop. So I thought I'd post settings I found that worked. I tested these with Zimbra Desktop 2.0 Beta 3.
Account Type: POP
Receiving Mail Settings
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User Name:
yourname@comcast.net
Password: ------
Incoming Server: mail.comcast.net
Sending Mail Settings
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SMTP Server: smtp.comcast.net
Edit the Port to "465"
Check the "Use SSL encryption when sending mail"
Check the "Username and password required to send mail"
User Name: yourname
Password: -----
Check the "New messages" box to "Leave on Server"