How to avoid falling for the "Outgoing Messages Not Reaching Recipients" email scam

What kind of email is "Outgoing Messages Not Reaching Recipients"?

We have examined this email and determined it is a phishing scam. It impersonates an automated notification from the recipient's own email delivery system, falsely claiming that outgoing messages are not reaching their destination. The goal is to trick recipients into entering their email login credentials on a fraudulent website.

"Outgoing Messages Not Reaching Recipients" email scam overview

The email informs the recipient that their outgoing messages are failing to reach recipients due to delivery configuration issues. It presents two options: "Ignore delivery issue" or "Fix delivery now." The message uses technical language referencing RFC 5321, DMARC, DKIM, and SPF standards to appear legitimate.

Clicking "Fix delivery now" leads the victim to a fraudulent cPanel Webmail login page hosted on Google Firebase Storage. The page pre-populates the victim's email address and asks them to enter their password to resolve the supposed delivery problem.

Any credentials entered on that page are sent directly to the scammers. With access to an email account, attackers can hijack linked services, read private messages, and use the compromised address to target the victim's contacts.

Neither cPanel, L.L.C. nor any legitimate email service provider has any connection to this scheme. The scammers replicated the appearance of a real webmail login interface solely to appear trustworthy.

Similar scam emails in general

This email is a phishing scam disguised as an automated delivery failure notice from the recipient's email service. Its goal is to steal webmail login credentials through a fake cPanel login page. Recipients should ignore the email and avoid interacting with its links.

Sometimes, scams like this are used to deliver malware. More examples of similar scam emails are Purchase Order Review Request, Forwarding Rule Added, and Security Verification - Confirm You're Not A Robot.

How do spam campaigns infect computers?

Spam emails are a common delivery method for malware. Threat actors attach harmful files to messages or include links to sites where malware can be downloaded. These files come in many formats, including executable programs, compressed archives, PDF documents, and Office files.

Opening these files can trigger an infection immediately or require additional steps first. Office documents containing malicious macro commands, for example, are only dangerous when macros are enabled by the user. If you have already opened a suspicious attachment, we recommend running a scan with Combo Cleaner Antivirus for Windows to automatically eliminate any infiltrated malware.

How to avoid installation of malware?

Be cautious with unexpected emails, particularly those that pressure you into taking immediate action. Do not open attachments or follow links from unknown senders. Even messages that appear to come from familiar services can be spoofed, so always verify through official channels first.

Download software only from official websites and verified app stores. Avoid third-party download platforms, torrent sites, and tools that crack or patch paid software, as these are common sources of hidden malware.

Keep your operating system and all installed programs up to date. Use a reputable anti-malware application and run system scans regularly. Do not allow unfamiliar websites to send you browser notifications.

Text presented in the "Outgoing Messages Not Reaching Recipients" email letter:

Subject: ******** Outgoing Messages Not Reaching Reciepients.

******** Outgoing Messages Not Reaching Recipients
Our delivery system has detected that your outgoing messages from ******** Email Delivery System are not reaching recipients due to delivery configuration issues.

To ensure your outgoing messages are delivered successfully from ******** and avoid service disruption, please select one of the options below:
[Ignore delivery issue]
[Fix delivery now]

DELIVERY FAILURE NOTICE: This message contains confidential delivery failure information for the named recipient. If you are not the intended recipient, please contact our delivery department immediately at COMPLIANCE STATEMENT: logisticshub.ae enforces email delivery policies in accordance with RFC 5321 standards and industry best practices including DMARC, DKIM, and SPF requirements.

DELIVERY POLICY: Delivery issues are logged and monitored. Failed messages are queued for 72 hours.

© ******** Delivery System | All Rights Reserved 2025 | RFC Compliant | Delivery Protection |

A fake Webmail login page used in this scam:

Instant automatic malware removal:

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Quick menu:

• What is Outgoing Messages Not Reaching Recipients 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?

Scam emails are not targeted at specific individuals. Cybercriminals distribute them in bulk using address lists gathered from data breaches, fake websites, and other collection methods. Receiving one does not mean the sender has any personal information about you.

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

Change the password for any email account where you entered your credentials, and update the password on all other accounts that share it. If you also submitted payment or identity details, contact the relevant institution or authorities as soon as possible.

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

The risk depends on the file type. Executable files can trigger an infection the moment they are launched. Document-based formats like PDFs or Office files generally require additional interaction, such as enabling macros, before malware activates. The specific format and your actions determine the outcome.

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

Simply reading an email is not enough to infect a computer. Infections happen when users click malicious links or open harmful attachments. If you did not interact with any content in the message, your device is not at risk.

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

Combo Cleaner is capable of detecting and removing most known malware. That said, running a full system scan is essential, as more sophisticated threats may hide deeper within the system and can be missed without a thorough scan.