Unable to add my Comcast email to my Iphone

Switch from POP to IMAP. Visit the Settings menu, and tap Add Account. iPhone Settings menu. Tap Other. iPhone Add Account screen. Tap Add Mail Account and then ...

Switch your Xfinity Email from POP to IMAP on iPhone

A step by step guide to add email account on iPad and iPhone

This process is valid for all mails, AOL, Google, Yahoo, Outlook, Hotmail, Exchange etc etc

1. Keep your email id and password handy
2. Use this link to find out your Incoming and Outgoing server settings by entering your email address

Mail - Official Apple Support

If it is not available in the link above contact your email client

The GIF is self explanatory.

iCloud Account IMAP and SMTP

Comcast IMAP Settings

• Option Description IMAP Host: imap.comcast.net IMAP
• Port: 993 
• Requires SSL: Yes 
• IMAP Username: Your full mailbox address (name@domain.com)
• IMAP Password: Your email account password

Comcast SMTP Settings

If you have an account with Comcast and you want to configure your mail client to send emails, all you need to do is enter the following Comcast SMTP settings into the server configuration area of your mail client: 

• Option Description SMTP Host: smtp.comcast.net SMTP
• Port: 465 or 587
• TLS (use SSL if TLS isn't shown) 
• SMTP Username: Your full mailbox address (name@domain.com) 
• SMTP Password: Your email account password