No. Comcast did not send the mail. It's a phishing attempt. While we understand that you wanted to ask about the mail, for future reference do not include links from such mails. The link you posted is not an active phishing link-if it were your post would be removed and sent to a secure area out of public view.
It contains very useful information about mail that purports to be from Comcast. Included in the info is WHY phishing links should not be posted.
By the time you get through reading it YOU will be an expert on HOW to know that the mail is a phishing attempt.
Comcast employees must be authorized to post in the forum in an official capacity. Employees posting here have their names in red and are designated as employees. Names not in red are customers.
This is done to protect customers and for assurance that they are dealing with a Comcast employee. Non-Authorized Employees are allowed to post but cannot state they are employees nor can they allude to being employees.
Any email communication that is actually from Comcast or Xfinity will always have the Comcast logo in front of the From:
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.