How to install CPanel MailScanner Install/Upgrade Package

Please read this whole page before downloading the package

Through our experience of installing, configuring and upgrading MailScanner for many clients we have decided to publish our scripts that can be used to:

  • Install MailScanner
  • Upgrade an existing MailScanner installation (that resides in /usr/mailscanner/)
  • Upgrade an existing MailScanner installation (and use a clean installation of the files)
  • Uninstall MailScanner

For upgrades and uninstallation, this package will only work with MailScanner installation installed from this package.

The package configures MailScanner with sensible options that will minimize impact on server performance. Do be aware, through, that high email traffic volumes will inevitably cost something in server performance. There are a few additional steps that you can take to minimize this:

  • Don’t use the Default Address (this will help limit exposure to dictionary attacks). Instead create Forwarders to your Mail Accounts for all addresses that you actually use. Do note that if you do this the main account email address will no longer work (quirk of cPanel). To use it, you need to create an actual Mail account called username@yourdomain.com and use that for POP3 access.
  • Use :fail: instead of :blackhole: for your Default or any other Address where you want delivery to fail. This causes email delivery to stop at an early stage (RCPT) before the email actually gets onto your server.

While we’re not aware of any significant bugs, there’s no guarantee or warranty provided with the script. We also do not provide any support for it.

 

You use it at your own risk*

This script has only been tested on supported releases of Redhat or CentOS LinuxThere is no support for running on servers running Trustix, FreeBSD, SUSE or any OS that is EOL/obsolete or unsupported by cPanel (e.g. RedHat 9, Fedora,etc).

Script installation

  1. If you have the cPanel Clamavconnector installed (WHM > Add-on Modules) remove it – it will break MailScanner
  2. Login to your root account on your server via SSH
  3. Download the package, expand it and go into it:
    wget http://www.configserver.com/free/msinstall.tar.gz
    tar -xzf msinstall.tar.gz
    cd msinstall/
  4. Follow the instructions in the README.txt and INSTALL.txt files in the package
  5. Please note that the script currently is configured to download the latest MailScanner at the time of writing. If you want a different version, edit msinstall.pl and modify the $mailscanner variable appropriately
  6. Once installed/upgraded/uninstalled make sure that both MailScanner is running correctly and that exim is sending and receiving emails (you should use 2 separate SSH windows to do this):
    tail -f /var/log/maillog
    tail -f /var/log/exim_mainlog

kbadmin has written 149 articles

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