@chirano makes a good point about the possibility of fake email messages that appear to be from Comcast/Xfinity, but really are phishing emails trying to get you to divulge your Comcast credentials to bad actors. To avoid that, you can follow the steps in the email message that he linked, or, perhaps better yet, just visit the Comcast/Xfinity website directly and sign into your account. If you are eligible to switch, you’ll see a message of one sort or another shortly after you sign in:
From there, you can decide whether or not to migrate your email to Yahoo’s mail servers.
As was discussed on another thread, there basically are three options:
- Leave things alone unless/until Comcast forces you to move away from Comcast. As @chirano said, Comcast is not forcing people to move to another service, at least not yet, but I would not be shocked if someday they do.
- Accept Comcast’s offer to migrate your Comcast email address to Yahoo. With some relatively rare exceptions, your email address, email password, and existing emails will be migrated from Comcast’s servers to Yahoo’s servers once you authorize the migration. My sense is that almost all migrations happen without any issues, but you should read the FAQs at Xfinity and Yahoo carefully to minimize the chance of problems. If you normally access your Comcast email via the web, you’ll need to use login.yahoo.com (or the Yahoo mail app) instead of the Comcast/Xfinity website. If you use apps like Apple Mail or Thunderbird to access your Comcast email, you’ll need to set up new accounts on those apps using Yahoo’s email servers.
- Stop using your Comcast email entirely. You can export your emails and import them to another mail provider, like Gmail, Outlook, or others, but you will need a new, non-Comcast email address. Note that Comcast-hosted email accounts are automatically disabled if they are not used for twelve months.
It’s not a bad idea to export your Comcast mail as a backup file before trying any migration.