COMCAST SMTP SETTINGS
Here you will find the SMTP settings for Comcast. SMTP servers are also referred to as outgoing mail servers. The POP3 and IMAP settings for Comcast can be found here.
 

SMTP (Simple Mail Transfer Protocol) is a member of the Internet Protocol family, which is used to exchange Emails in computer networks. It is generally used to send and forward Emails. Other specialized protocols are used to retrieve Emails, such as POP3 or IMAP.