Remove “Message Quarantine Notification” email

The “Message Quarantine Notification” email falls into the phishing category as it was created to steal email login credentials. It pretends to be from the email service provider, claiming that 8 of your emails have been quarantined because they need to be verified. The email includes a button to supposedly read the emails, but clicking it leads to a phishing site that asks you to log in to your email account. If you enter your password on this phishing site, it will be sent to the malicious actors operating this phishing campaign. This could allow them to access not only your account but also potentially other connected accounts.

 

 

 

This “Message Quarantine Notification” email is a fairly typical phishing attempt. Malicious actors often disguise these emails as notifications about issues with users’ email accounts. In this case, the issue is supposedly withheld emails that could not be delivered to your inbox. According to the email, there are 8 undelivered emails that you can view by clicking on the provided button. The email also shows you the subject lines of these supposedly undelivered emails, and they have something to do with a purchase or payment confirmation. When it comes to money, users tend to react hastily, so these subject lines are purposely made to alarm users. However, the email’s contents are all false. If you were to click on one of the buttons in the email, you would be redirected to a phishing site that asks you to log in to your email account. If you were to do that, your email credentials would be sent to the malicious actors operating this phishing campaign.

Email credentials hold significant value for cybercriminals for several reasons. Firstly, users tend to retain the same email addresses for many years, often accumulating a lot of personal and sensitive information if old emails are not routinely deleted. This information can be exploited for purposes such as blackmail or extortion. Additionally, email accounts are frequently linked to numerous other services, making access to an email account a gateway to compromising all connected accounts.

If you have interacted with this phishing email and entered your login credentials, it is critical to change your password immediately. In cases where the account has been compromised and access is lost, all available account recovery options should be explored. If recovery efforts fail, it is essential to remove the compromised email address from all linked accounts to prevent further unauthorized access.

The full “Message Quarantine Notification” email phishing email is below:

Message Quarantine Notification

Secure email filtering system
Messages Require Your Attention

The following messages have been temporarily held by our security system for verification.
Account: –
Quarantined: 8 messages
8 NEW MESSAGES

Click on Resolve Messages to review and release these messages to your inbox:
Status Subject Date
Pending Re: Payment Confirmation Fri, Sept. 12, 2025 07:14 AM
Pending Re: Shipping Document Import/Logistic Thur, Sept. 11, 2025 1:45 PM
Pending Re: Updated Project Timeline Wed, Sept. 10, 2025 2:30 PM
Pending AW: New Order Tue, Sept. 9, 2025 12:15 PM
Pending Request for Quotation Mon, Sept. 8, 2025 10:45 AM
RESOLVE MESSAGES (8)
Why were these messages quarantined?

Our security system may hold messages for various reasons including suspicious links, unexpected senders, or content that matches common phishing patterns. This helps protect your account from potential threats.

This is an automated message from your email security system. Please do not reply to this message.

If you have any questions, please contact your system administrator.
This message was sent securely from your email filtering system

This email was sent to -.
Unsubscribe from quarantine notifications | Security Settings

Signs of a phishing email

You should be very careful with all unsolicited emails, especially with the ones urging you to click on links or open attachments. Always review their content critically to assess if it makes sense. For example, this “Message Quarantine Notification” email makes no sense because email service providers do not send such emails, nor do they withhold emails. Thus, it’s a very clear phishing attempt from the very beginning.

Before you engage with any unsolicited email, always check the sender’s email address. If the sender claims to be from a reputable company but the email address appears random or unprofessional, it is more than likely malicious. Even if the address looks legitimate, confirm that it actually belongs to the person or organization the sender claims to represent. This can often be done through a quick online search. Malicious actors sometimes use tactics to make their email addresses seem credible, such as replacing characters with similar-looking ones (e.g., using “rn” instead of “m”) or adding extra characters to imitate trusted senders. In some cases, malicious actors use various spoofing techniques to make it seem like the email was sent from users’ own accounts.

Malicious emails also tend to have a lot of grammar and spelling mistakes, so that is something you should always check for in emails that are supposedly sent by legitimate companies. Phishing emails are often poorly written and riddled with mistakes, which immediately reveals their malicious intent. While some phishing emails, such as the “Message Quarantine Notification” email, may lack obvious spelling errors, awkward phrasing can indicate they are not legitimate correspondence from your service provider.

Take your time reviewing emails and avoid rushing to click on links or open attachments. Hover over buttons to preview their destinations before clicking, and always scan unsolicited attachments with antivirus software or verify them using tools like VirusTotal to ensure they are safe.