Spoof / Legit email?

One of my users just received this email. Wanted to check if it is legit.

From: AT&T Yahoo Mail© <[email scrubbed]>
Sent: Tuesday, June 16, 2020 8:56 AM
Subject: ✅ Mailbox Closure Imminent !!

Prior to AT&T Agreement

"Starting on June 20, 2020, AT&T customers that are yet to update their email account will no longer be able to log in to their account through email addresses due to recent new year upgrades.

Customers will have to verify their email address to confirm.

Complete verification to avoid account closure

Kindly click on the link above to re-login and verify now! We apologize for any inconvenience caused.

Sincerely,

AT&T Support

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