These are targeted and simple forms of phishing emails designed to get victims to click on a link that contains malicious content or steals your credentials.
Tips if Something Seems Off:
Double-check the email address before responding
Look to make sure the email address is correct. In Gmail hover your mouse over the sender name for the email to display. On a mobile phone or a touchscreen, press and hold the link (don't tap!) to reveal the actual URL. (Look in the bottom left corner of the browser window.) Don't click on a link unless it goes to a URL you trust.
Follow up with the sender separately
If you didn’t expect it, reject it. Or follow-up with the individual directly in a separate email or call/text to confirm.
Report and/or flag it
Examples of these types of attacks include:
Date: Mon, May 24, 2021 at 8:16 PM
Subject: UPDATE REQUIRED ON firstname.lastname@example.org
Outgoing Mail Error
Due to server error, 6 new mails you sent from email@example.com are
stucked in berkeley.edu
Release below to re-send all stuck emails to the destination boxes.
This is a mandatory berkeley.edu webmail service sent to