How to turn on spam protection in Plesk

What is a spam filter?

A spam filter is like a guard at the door of your mailbox. It reads each new message and gives it a score. A high score means "probably junk". Plesk commonly uses a tool named SpamAssassin for this. Ask Hostvento support if it is on your plan.

Turn it on for the whole domain

1. Log in to Plesk.
2. Click Mail in the left menu. Or open Websites & Domains, then your domain, then Mail.
3. Click the Spam Filter tab. If you see Mail Settings, open your domain there and look for spam options.
4. Tick Switch on spam filtering.

   

5. Choose what to do with spam. You usually have these choices:
   • Mark messages as spam: adds a label like "***SPAM***" to the subject. The mail still arrives.

     

     

   • Delete spam: removes it at once. Be careful, because good mail can be removed by mistake.
   • Move to Spam folder: keeps it in a folder you can check.
6. Set the spam filter sensitivity. A lower number catches more spam but may block good mail. A higher number is safer for real mail. If you are not sure, keep the default.
7. Click OK.

Warning: do not choose "Delete" on day one. Pick "Move to Spam folder" first, and check it often.

Turn it on for one mailbox

1. Open Mail.
2. Click the email address.
3. Open the Spam Filter tab.

   

4. Tick the box to turn it on, and save with OK.

Block or allow senders

In the same Spam Filter area, you can add a Blacklist and a Whitelist. A blacklist holds senders you always want to block. A whitelist holds senders you always trust. Add email addresses or whole domains such as *@example.com.

Need help? Open a support ticket.

Quick recap

• A spam filter scores each email and handles the junk.

  

• Switch it on under Mail, then Spam Filter.
• Start by moving spam to a folder instead of deleting it.
• Use the whitelist for senders you trust.