Filtrage des e-mails indésirables (Courrier indésirable) dans cPanel

cPanel allows you to filter messages that are marked as spam and automatically redirect them to a separate folder. This approach helps reduce inbox clutter while still allowing you to review messages that may have been flagged incorrectly.

Prerequisites

Before creating spam filtering rules, spam filtering must already be enabled for the account. If spam filtering is not active, related options will not be available when defining filter rules.

These features are available on standard cPanel hosting environments.

Why redirect spam instead of deleting it

Automatically deleting spam messages can result in lost legitimate emails that were incorrectly classified. Redirecting spam into a dedicated folder allows periodic review and recovery of valid messages if needed.

This method is commonly preferred for business mailboxes or accounts that receive important transactional email.

Creating a Spam folder

A folder must exist before messages can be delivered into it.

1. Access the mailbox using webmail or an email client.
2. Create a new folder named Courrier indésirable.
3. If using a desktop email client, ensure the folder is subscribed and visible.

[Screenshot placeholder: Mailbox folder list showing Spam folder]

Creating a spam filter rule in cPanel

After the folder is created, define a filtering rule in cPanel.

1. Connectez-vous à cPanel.
2. Ouvrez le Outils page.
3. Dans le E-mail section, faire un clic Email Filters.
4. Locate the mailbox and click Manage Filters.
5. Faire un clic Create a New Filter.
6. Enter a descriptive filter name.
7. Sous Rules, configure the following:
   • Field: Spam Status
   • Operator: begins with
   • Value: Oui
8. Sous Actions, select Deliver to Folder.
9. Faire un clic Browse and select the Courrier indésirable folder.
10. Faire un clic Create to activate the filter.

[Screenshot placeholder: Email filter rule configuration]

Messages marked as spam are now automatically redirected to the Spam folder.

Advanced filtering options

Additional filtering logic can be applied using spam scores.

• Lower spam scores can be redirected for review.
• Higher spam scores can be discarded automatically.

This allows fine grained control over how aggressive spam handling should be.

Improving spam protection

For enhanced filtering accuracy, reputation based detection, and reduced false positives, dedicated filtering solutions such as SpamExperts can be integrated. Accounts with higher mail volume or stricter delivery requirements may also benefit from infrastructure based on serveurs cloud.