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Home ScamsPhishing Scams ‘Undelivered Email’ Phishing Scam Hitting Inboxes

‘Undelivered Email’ Phishing Scam Hitting Inboxes

by Brett M. Christensen

According to this email, your email service has prevented the delivery of new messages to your inbox.

The message, which purports to be from the “Microsoft E-Mail Service”, claims that you can click a button to review the undelivered messages and “choose what happens to them”.

However, the email is not from Microsoft and, despite the green label, it certainly was not “sent from a trusted sender”.

Instead, the email is a phishing scam designed to hijack your email account.

If you click the “Review Messages” button, you will be taken to a scam website that asks you to login with your email address and password. After entering these details, you may then be redirected to a genuine Microsoft website.

Criminals can now use the login credentials you submitted to gain access to your email account and any linked services such as online file storage or app stores.

Once in, they can use your account to send spam and scam emails in your name. If they can access linked services as well, they may be able to make app store purchases via your account, read and download your stored files, and collect even more of your personal information.

Using the account and the information they have collected, they may be able to impersonate you and perhaps even steal your identity. They may also be able to hijack other online accounts you own by using the reset password option,  which often uses a password change email sent to your account.

Phishing campaigns like this take many forms.  Be wary of any email that claims that you must click a link or open an attached file to deal with a supposed account problem.

Always access your email account by entering the address into your browser’s address bar or via a trusted app. If there really is an account issue that you need to deal with, you will most likely be informed after you login.

An example of the scam email:


Pending Emails Phishing Scam

Importance Notice

After considerable thought and with an ache in my heart, I have decided that the time has come to close down the Hoax-Slayer website.

These days, the site does not generate enough revenue to cover expenses, and I do not have the financial resources to sustain it going forward.

Moreover, I now work long hours in a full-time and physically taxing job, so maintaining and managing the website and publishing new material has become difficult for me.

And finally, after 18 years of writing about scams and hoaxes, I feel that it is time for me to take my fingers off the keyboard and focus on other projects and pastimes.

When I first started Hoax-Slayer, I never dreamed that I would still be working on the project all these years later or that it would become such an important part of my life. It's been a fantastic and engaging experience and one that I will always treasure.

I hope that my work over the years has helped to make the Internet a little safer and thwarted the activities of at least a few scammers and malicious pranksters.

A Big Thank You

I would also like to thank all of those wonderful people who have supported the project by sharing information from the site, contributing examples of scams and hoaxes, offering suggestions, donating funds, or helping behind the scenes.

I would especially like to thank David White for his tireless contribution to the Hoax-Slayer Facebook Page over many years. David's support has been invaluable, and I can not thank him enough.

Closing Date

Hoax-Slayer will still be around for a few weeks while I wind things down. The site will go offline on May 31, 2021. While I will not be publishing any new posts, you can still access existing material on the site until the date of closure.

Thank you, one and all!

Brett Christensen,