WARNING: These are scams. They are Emails sent to a honeytrap address only ever used for this purpose. Do not reply to these people, they will try to con you into paying out money in return for nothing.

CAVEAT: Please note that some of these Emails may be impersonating a genuine company or person. We wish to make it clear that any such name mentioned within these Emails has no connection to the scam. For the sake of searching, we leave these messages untouched, but we will respond to any concerns left in our comments.

From: Mail Delivery System <[email protected]>
Date: 3 Feb 2022 07:24:30 +0100
Subject: Mail delivery failed: [email protected] have 6 ...

 [email protected] MAILBOX FULL

Valued Nigel,

Your mailbox is virtually occupied, kindly enhance your quote.

FAILURE TO INITIATE THIS UPGRADE EXECISE WILL RESULT TO MALFUNCTION
AND FAILURE DELIVERIES OF THE WEB-EMAILS.

upgrade now
 <Suspicious link to firebase storage> 

Thank You,
This email has been sent from an unmonitored email address. Please
do not reply to this message. We are unable to respond to replies.

The Email contained an excessively large subject. For aesthethic reasons we have truncated the message in the title and reproduce the full subject below.

Mail delivery failed: [email protected] have 6 Pending incoming messages.