What kind of scam is "cPanel - Failed Incoming Messages Report"

What kind of email is "cPanel - Failed Incoming Messages Report"?

We have inspected this email and determined it is a phishing scam. It is disguised as an automated alert from cPanel and Roundcube Webmail Support, falsely informing the recipient that incoming messages were blocked due to a server storage issue. The goal is to lure recipients into visiting a fraudulent page and handing over their email password. This email should be ignored.

More about the "cPanel - Failed Incoming Messages Report" scam email

The email arrives under the subject "Failed Incoming Messages Report" and is formatted to resemble an official notice from cPanel and Roundcube Webmail. It claims that several incoming messages to the recipient's mailbox were quarantined because the attached files exceeded the server's allowed quota.

To appear more convincing, the email displays a table listing three supposedly blocked messages with business-sounding subjects. A "Review Quarantined Messages" button is included, intended to draw the recipient into clicking it.

Clicking that button leads to a page on wittenhorst[.]eu. The page loads a real Google error screen in the background and overlays it with a pop-up titled "Re-Authentication Required." The pop-up pre-fills the victim's email address and asks for a password to "continue repair." Additionally, the site identifies the recipient's email provider from their address and adjusts its branding accordingly - showing Google-themed content to Gmail users, for instance.

Any password typed into that form goes directly to the scammers. With access to an email account, cybercriminals can read private correspondence, impersonate the victim, reset passwords for linked services, or sell the stolen credentials.

It must be stated clearly that neither cPanel nor Roundcube has any connection to this scheme. Their names have been misused by scammers without authorization.

Email scams in general

This email is a phishing scam that impersonates cPanel and Roundcube Webmail Support to trick recipients into giving up their email account passwords. The fraudulent site it links to adapts its appearance to match the victim's email provider, making it particularly deceptive.

Recipients should delete this message without clicking any links. Sometimes, spam campaigns like this are also used to deliver malware. More examples of similar scam emails are Purchase Order And Proforma Invoice Confirmation, Payroll Statement, and Delivery Status Summary.

How do spam campaigns infect computers?

Spam emails are one of the most common ways malware is spread. Cybercriminals attach malicious files directly to the message or include links leading to harmful downloads. These files can take various forms - executables, archives, PDF documents, Microsoft Office files, and scripts are among the most commonly used.

Opening an executable typically starts an infection immediately. Other file types, such as Office documents, may require the user to take an extra step - like enabling malicious macro commands - before malware can run. Either way, the threat only becomes active when the user interacts with the content.

How to avoid installation of malware?

Be cautious with any email you were not expecting, especially one that urges you to act quickly. Avoid opening attachments or following links in messages from senders you do not recognize. When in doubt, verify the claim directly with the organization the email claims to be from.

Only download software from official websites or verified app stores. Pirated programs, cracks, and key generators are frequently used to distribute malware. Keep your operating system and applications up to date, and run a reputable security program.

If you have already opened a suspicious attachment, run a scan with Combo Cleaner Antivirus for Windows to detect and eliminate any malware that may have been installed.

Text presented in the "cPanel - Failed Incoming Messages Report" email letter:

Subject: Failed Incoming Messages Report

Failed Incoming Messages Report

We regret to inform you that some incoming messages sent to your mailbox were placed in quarantine as the attached files exceeded the allowed server quota.
You can review the quarantined messages below:

Status | Subject | Date
Read | Revised PO | 8/17/2026 5:57:25 PM
Read | PO | 8/17/2026 5:57:25 PM
Read | Orders | 8/17/2026 5:57:25 PM

[Review Quarantined Messages]

Roundcube Webmail Support

This notification was sent to inform you of mailbox activity related to your account. Please ensure your storage limits are maintained to prevent future disruptions.

Privacy Policy

© 2004-2026 Roundcube. All rights reserved.

A fake credential collection page used in this scam:

Instant automatic malware removal:

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Quick menu:

• What is cPanel - Failed Incoming Messages Report phishing scam?
• Types of malicious emails.
• How to spot a malicious email?
• What to do if you fell for an email scam?

Types of malicious emails:

Phishing Emails

Most commonly, cybercriminals use deceptive emails to trick Internet users into giving away their sensitive private information, for example, login information for various online services, email accounts, or online banking information.

Such attacks are called phishing. In a phishing attack, cybercriminals usually send an email message with some popular service logo (for example, Microsoft, DHL, Amazon, Netflix), create urgency (wrong shipping address, expired password, etc.), and place a link which they hope their potential victims will click on.

After clicking the link presented in such email message, victims are redirected to a fake website that looks identical or extremely similar to the original one. Victims are then asked to enter their password, credit card details, or some other information that gets stolen by cybercriminals.

Emails with Malicious Attachments

Another popular attack vector is email spam with malicious attachments that infect users' computers with malware. Malicious attachments usually carry trojans that are capable of stealing passwords, banking information, and other sensitive information.

In such attacks, cybercriminals' main goal is to trick their potential victims into opening an infected email attachment. To achieve this goal, email messages usually talk about recently received invoices, faxes, or voice messages.

If a potential victim falls for the lure and opens the attachment, their computers get infected, and cybercriminals can collect a lot of sensitive information.

While it's a more complicated method to steal personal information (spam filters and antivirus programs usually detect such attempts), if successful, cybercriminals can get a much wider array of data and can collect information for a long period of time.

Sextortion Emails

This is a type of phishing. In this case, users receive an email claiming that a cybercriminal could access the webcam of the potential victim and has a video recording of one's masturbation.

To get rid of the video, victims are asked to pay a ransom (usually using Bitcoin or another cryptocurrency). Nevertheless, all of these claims are false - users who receive such emails should ignore and delete them.

How to spot a malicious email?

While cyber criminals try to make their lure emails look trustworthy, here are some things that you should look for when trying to spot a phishing email:

• Check the sender's ("from") email address: Hover your mouse over the "from" address and check if it's legitimate. For example, if you received an email from Microsoft, be sure to check if the email address is @microsoft.com and not something suspicious like @m1crosoft.com, @microsfot.com, @account-security-noreply.com, etc.
• Check for generic greetings: If the greeting in the email is "Dear user", "Dear @youremail.com", "Dear valued customer", this should raise suspiciousness. Most commonly, companies call you by your name. Lack of this information could signal a phishing attempt.
• Check the links in the email: Hover your mouse over the link presented in the email, if the link that appears seems suspicious, don't click it. For example, if you received an email from Microsoft and the link in the email shows that it will go to firebasestorage.googleapis.com/v0... you shouldn't trust it. It's best not to click any links in the emails but to visit the company website that sent you the email in the first place.
• Don't blindly trust email attachments: Most commonly, legitimate companies will ask you to log in to their website and to view any documents there; if you received an email with an attachment, it's a good idea to scan it with an antivirus application. Infected email attachments are a common attack vector used by cybercriminals.

To minimise the risk of opening phishing and malicious emails we recommend using Combo Cleaner Antivirus for Windows. 

Example of a spam email:

What to do if you fell for an email scam?

• If you clicked on a link in a phishing email and entered your password - be sure to change your password as soon as possible. Usually, cybercriminals collect stolen credentials and then sell them to other groups that use them for malicious purposes. If you change your password in a timely manner, there's a chance that criminals won't have enough time to do any damage.
• If you entered your credit card information - contact your bank as soon as possible and explain the situation. There's a good chance that you will need to cancel your compromised credit card and get a new one.
• If you see any signs of identity theft - you should immediately contact the Federal Trade Commission. This institution will collect information about your situation and create a personal recovery plan.
• If you opened a malicious attachment - your computer is probably infected, you should scan it with a reputable antivirus application. For this purpose, we recommend using  Combo Cleaner Antivirus for Windows.
• Help other Internet users - report phishing emails to Anti-Phishing Working Group, FBI’s Internet Crime Complaint Center, National Fraud Information Center and U.S. Department of Justice.

Frequently Asked Questions (FAQ)

Why did I receive this email?

These emails are distributed in bulk and are not targeted at specific individuals. Scammers collect addresses through data breaches, fake sign-up pages, and other methods, then send the same message to large numbers of recipients at once.

I have provided my personal information when tricked by this email, what should I do?

If you entered your email password, change it immediately and update the same password on any other account where it was reused.

If other sensitive details were shared - such as banking information or identification data - contact the relevant institutions or authorities without delay.

I have downloaded and opened a malicious file attached to an email, is my computer infected?

Whether your device is infected depends on the file type. Executable files can start an infection as soon as they are opened. Office documents and similar formats typically require the user to take an extra step, such as enabling macros, before any malware is activated.

I have read the email but did not open the attachment, is my computer infected?

No. Reading an email does not put your device at risk. Infection only occurs when you open an attachment, click a malicious link, or take some other action that allows harmful content to run.

Will Combo Cleaner remove malware infections that were present in email attachment?

Combo Cleaner can detect and remove a wide range of malware. Running a full system scan is the most reliable way to ensure any hidden threats are found and eliminated.