If you are recieving too much spam via Email you can increase the SPAM detection rate via PLESK.
1. Log onto Securehost.ie 2. Goto Services > My Services 3. Choose the service related to your email address and View Details 4. Click the orange Login to Plesk Control Panel 5. Goto Mail Tab 6. Click on the Email address 7. Goto Spam Filter tab 8. Tick "Switch on Spam..." if it is not ticked 9. Choose how you would liek to deal with SPAM 10. Click Show Advanced Setttings 11. Reduce the Spam Filter Sensitivty to eleminate SPAM or Increase it if bonafide Emails are being marked as SPAM