Which version of XC are you using, full or lite? When you open a message in the full version you will see the option on the far right to add the email address to your address book. Click there, you will be directed to a new window. Click save.
There is no way I know of to automatically have every email address you receive email from to be automatically added to your address book.
If you have an existing address book of contacts saved in an email client,etc. You can import those contacts into the Comcast address book.
Post back if you need more help.
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Need Email Help? Please post the following information in your post.
Do you use XfinityConnect? The Full or Lite version?
Do you use an email client? Which one? (Eg; Windows Live mail, Outlook, a smartphone etc.)
Which browser/version do you use? And- have you cleared your browser cache?
Which operating system? XP, Vista, Windows 7, Mac OS X
Details of the problem you are having.
