I received this email today and it looks legit but I'm dumping it because it has a link to click:
Your mail needs to be updated today as we are rolling over to a new version in order to serve you better. Kindly use the link below to update your data on file to keep enjoying our service.
The image you posted isn't visible. It looks like this:
It's probably because the image requires moderator approval. But the text shows the message to be a common phishing scam. If you check your email with Comcast's Xfinity Connect webmail, look for the XFINITY Verified Email logo next to any message that claims to be from Comcast/Xfinity (see https://www.xfinity.com/support/articles/comcast-verified-email). If the logo is missing when you view the message in webmail, the message is not from Comcast. Unfortunately, AFAIK the logo is not present when you view one of their messages in an email app or program, not in even Comcast's own email app. It's only visible when you use their web email site.
Samples of recent phishing messages can be found at https://internetsecurity.xfinity.com/help/alerts/ under "Top Phishing Scams".
To report a scam email to Comcast, follow the "Report Spam and Phishing Emails" link on https://internetsecurity.xfinity.com/help/report-abuse/ and scroll down to the "Report Phishing Emails" section.