If you get e-mail like this:
And your email@example.com is still using old version, Please tap the blue button below to upgrade your mailbox to the latest version, and get 25GB free data space with a more organized mailbox to avoid deactivation.
It is a scam. You can forward it to firstname.lastname@example.org or just delete it. I’ve already traced the source, it is coming from a Seattle based competitor. Slimy business practice in my view but I guess that’s our world today.