Please find below our list of Email guides to help with your hosting account.

SpamExperts - An overview of the service

This article was posted in: Email

SpamExperts is our dedicated spam filtering cluster that inspects all incoming email.

To ensure your domain's email is being filtered, your MX records should point to the following servers. By default, new domains are configured with the correct settings.


The above servers act as a cluster, and togetehrm they check all incoming email, and then pass it to your cPanel server where the messages are routed into your individual mailboxes.

Every cPanel account enjoys customised settings for SpamExperts to help adapt it to your specific requirements.

If you have moved to Krystal, then your DNS records may not yet be set correctly. To set your MX records, please read How to configure MX records and mail routing. Then you must log into SpamExperts from your cPanel account and ensure the correct delivery route is configured (See Managing SpamExperts - Email delivery routes, below)

SpamExperts is a very intelligent spam filtering service using many factors to determine if an incoming message is safe, including

  • Greylisting - This is a technique that presents the sending mail server with a special test that most spam servers will fail. More information on Greylisting is available here.
  • Real time black lists (RBLs) - SpamExperts inspects publically available black lists of known spammy servers.
  • Content analysis - SpamExperts inspects the contents of the email messages including attachments to determine if the message is spam.
  • SPF and DKIM testing - SPF and DKIM are advanced opt-in techniques used by many mail servers to authenticate outgoing email. SPF relies on the DNS system to identify which mail servers are authorised to send email. DKIM (DomainKeys Identified Mail) uses crypographic techniques to "sign" outgoing mail.

You can learn more about using and configuring SpamExperts by reading these articles: