You might be sending legitimate emails, but still get blocked from sending them. While you may already understand that “MailChannels Error: Message Blocked” means that your email address has been marked as “spammy” or “malicious,” you might wonder what’s the difference between “MailChannels Error: Message Blocked” and “MailChannels Error: Sender Blocked.”
What is the MailChannels “Sender Blocked” Error?
The MailChannels “Sender Blocked” error happens when your server IP address or DOMAIN has been flagged by a global spam blacklisting database as sending high-volume spam content.
- The first thing to do is to check if your domain is on a spam blacklist: https://mxtoolbox.com/blacklists.aspx
- If it is not on the spam blacklist, get your “Shared IP Address” on the right side of your cPanel (accessible via https://yourdomain.com/cpanel, use the “paper_lantern” theme) and check via the same tool: https://mxtoolbox.com/blacklists.aspx
Whether you see that you’ve been blocked by spam detection databases or not, we will coordinate with MailChannels and help unblock your email for you.
Before you submit a report to our Support Team, you can do these steps to secure your account and make sure that it isn’t being used for spam or other malicious purposes: “How to Create Secure Passwords for Your cPanel & Email Accounts” and “Keeping Secure Email Habits.”
Then please submit a report to [email protected] with the following details:
- Status of your IP Address and Domain, if it was blacklisted
- Screenshot or PDF of the result from MX Toolbox (Right-click + Print > Destination > Print to PDF)
- Date when the message was sent
- Time when the message was sent (in GMT +8, Singapore Standard Time/SGT)
- Your authenticated username or the problematic email address
- Sender email address (the ‘FROM’ address)
- Recipient email address (the ‘TO’ address)
- Error message
- Email subject
We will then let you know when the error has been fixed, and you can then continue to enjoy using your CLDY-powered hosting account, domain, and email!