A common phishing email that is seen here at Berry and elsewhere is a notification that the recipient has a random number of undelivered emails, usually since a certain date. Sometimes the emails are described as unique in some way, for example “clustered”. Clicking on the link will take the user to a fake Office365 login page where, if they enter their username and password, it is captured. Sometimes the fake site will redirect the user to their real login page, as if they had entered the wrong credentials.
Don’t fall for these emails, there is no self-service function to release “undelivered” emails.
Please report all emails like this using the “Report Email As Phishing” button