Are you currently conducting a test of this? If so, what are your thoughts on it?
Do you still believe MailChannels is necessary?

I don't have an opinion on MailChannels itself, but I believe that their cPanel plugin poses a security risk. The reason for this is that most of the files are world-writable, which means that if anyone were to modify those files and the root user accessed the plugin through WHM, it could potentially lead to a system compromise.

I have already tried contacting them, but I am still waiting for a response. In the meantime, I recommend using the following commands:

find /usr/local/mailchannels -type d -exec chmod 755 {} \;
find /usr/local/mailchannels -type f -exec chmod 644 {} \;
chmod 755 /usr/local/mailchannels/index.php

Additionally, it would be a good idea to perform a checksum test to ensure that files have not been modified before.

I recommend sending out a notice to raise awareness about the fix, as many cPanel plugin users may not be aware of the issue and could potentially continue using the software, which can result in a root compromise.

When using DirectAdmin, the Imunify UI requires that the proc_open PHP function be enabled. If you encounter any difficulty opening the Imunify interface, there may be a corresponding message in the webserver error log. To resolve this issue, please remove it from the disable_functions list found in php.ini.

The free version of Imunify performs regular virus database updates, scans site files without restrictions on the period or number of sites, and checks domains for blacklist entries. However, to treat files, you will need to purchase ImunifyAV.

Imunify Email, with its proactive threat detection capabilities and comprehensive email security features, serves as a powerful defense against a wide range of email-based threats, including spam, phishing, and malware. Its ability to safeguard email communications and protect users from potential security risks is a testament to its value as a primary layer of defense within a hosting environment.

When it comes to MailChannels, its focus on outbound email filtering and sender reputation management becomes particularly valuable. By ensuring that legitimate emails are not erroneously marked as spam and by maintaining a positive sender reputation, MailChannels contributes to high deliverability rates and a dependable email communication ecosystem. This aspect of email management becomes especially crucial for businesses and organizations that rely on consistent and reliable email delivery.

The decision to integrate both Imunify Email and MailChannels should be guided by a holistic assessment of the hosting infrastructure, the specific email usage patterns, and the overarching goals of the email system. By combining the robust security features of Imunify Email with the deliverability and reputation management capabilities of MailChannels, hosting environments can establish a comprehensive and resilient email protection framework that addresses security, deliverability, and reputation concerns in tandem.