Block account from Sending Mails on Cpanel Server

[stark]

Hi,

Is it possible to block account on my cpanel server for sending emails?

[chris ben]

Hi,

1. SSH to server as root.
2. Check the file “/etc/blockeddomains” is existing on the server. If it’s not there create one.
3. Add domains in “/etc/blockeddomains” to cut the email sending privilege.

You can use the following commands:

# echo "thedomain.com" > /etc/blockeddomains

[Brandon N]

Hello,

The steps are explained below:

1. SSH to server as root user.
2. Check the file “/etc/blockeddomains” is existing on the server. If it’s not there create one.

# touch /etc/blockeddomains

3. Add domains in “/etc/blockeddomains” to cut the email sending privilege.
echo “thedomain.com” > /etc/blockeddomains
Or else, open the file “/etc/blockeddomains” with your favorite text editor and add/append the domain into it.
# vi /etc/blockeddomains

thedomain.com
The ownership of the file is to be set as root.mail

# chown root.mail /etc/blockeddomains
Set the permission as 640

# chmod 640 /etc/blockeddomains
There are a few more steps to be done to have this working. Once the above steps are done, log into the WHM panel and go to “EXIM Configuration Manager.”
WHM –> Service Configuration –> EXIM Configuration Manager –> Advanced Editor
Search for the string“Add additional configuration setting.”

Add the following entry:
domainlist blocked_domains = lsearch;/etc/blockeddomains
Search for “ROUTERSTART” and add the following entry:

reject_domains:

driver = redirect

domains = +blocked_domains

allow_fail

data = :fail: Connection rejected: SPAM source $domain is manually blacklisted.


Brandon N
Linux Support Engineer.
Nixtree Solutions
Managed Full Server Backups
https://www.nixtree.com/managed-backups.php
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