Issues with Emails After Possible Domain Hack
Hello everyone,
This situation may sound more like a back-end than a front-end, that's why I prefer to ask it here, even though my page has nothing back-end, it's just a presentation page.
About a month ago, I uploaded the website I designed for a food import company to their existing domain. The domain and hosting were previously managed by another developer, whom I’ll call Alex. He owns his own hosting service. I uploaded the website on September 16, replacing the old version.
Last Friday, the company started experiencing issues with their emails. Alex blamed me, claiming that the website lacked security and that it caused a phishing attack. However, what really caught my attention was when he mentioned that the domain was "hacked" between August 20 and 24, well before I uploaded the new website.
Upon checking the cPanel, I noticed that the number of email accounts had increased from the original 28 to 40, confirming that someone had unauthorized access. I immediately took action by deleting the newly created email accounts and changing all the passwords for cPanel and the email accounts.
To address the ongoing issues, I had the company change hosting providers to see if that would resolve the problem and to stop relying on Alex.
Now, the issue is that when I try to send emails from some of these accounts, I get the following error message:
This message was created automatically by mail delivery software.
A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed:
xxxxxxx@xxxx.com
host eig-east.smtp.a.cloudfilter.net [3.228.35.199]
SMTP error from remote mail server after end of data:
550 <xxxxxxx@xxxx.com> message rejected AUP#POL
The message is much longer but due to server directives I am making it short. If you can help me with this I would appreciate it.
This situation may sound more like a back-end than a front-end, that's why I prefer to ask it here, even though my page has nothing back-end, it's just a presentation page.
About a month ago, I uploaded the website I designed for a food import company to their existing domain. The domain and hosting were previously managed by another developer, whom I’ll call Alex. He owns his own hosting service. I uploaded the website on September 16, replacing the old version.
Last Friday, the company started experiencing issues with their emails. Alex blamed me, claiming that the website lacked security and that it caused a phishing attack. However, what really caught my attention was when he mentioned that the domain was "hacked" between August 20 and 24, well before I uploaded the new website.
Upon checking the cPanel, I noticed that the number of email accounts had increased from the original 28 to 40, confirming that someone had unauthorized access. I immediately took action by deleting the newly created email accounts and changing all the passwords for cPanel and the email accounts.
To address the ongoing issues, I had the company change hosting providers to see if that would resolve the problem and to stop relying on Alex.
Now, the issue is that when I try to send emails from some of these accounts, I get the following error message:
This message was created automatically by mail delivery software.
A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed:
xxxxxxx@xxxx.com
host eig-east.smtp.a.cloudfilter.net [3.228.35.199]
SMTP error from remote mail server after end of data:
550 <xxxxxxx@xxxx.com> message rejected AUP#POL
The message is much longer but due to server directives I am making it short. If you can help me with this I would appreciate it.
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