The steps you can follow to minimize the amount of spam you receive to your inbox:
1.You can discard mails to users mailbox that don’t exist i.e.., disable catch-all.
You can find the option in your Cpanel->Mail->Default Address. In the to: field – enter:
:fail: no such address here
2.Filter your emails. You can find this option in Cpanel->Mail->E-mail Filtering->Add Filter.
By doing this, you can move unwanted mails to get deleted or moved to a separate mail folder.
3.Accept mails from trusted senders only be enabling “BoxTrapper Spam Trap”.
This option can be found in Cpanel->Mail->BoxTrapper Spam Trap
BoxTrapper protects your Inbox from spam by forcing all people not on your white list to reply to a verification email before they can send mail to you.
This is an effective way to make sure only people you “approve” can send you email.
Spam will not be able to enter your Inbox without prior approval from you as the white list manager.
4.You can flag a mail as spam using SpamAssasin.
This option can be found in Cpanel->Mail->SpamAssassin
5.(score) is the default setting.
The higher the number, the more conservative the setting.
you can also configure spamassassin from cPanel >> Mail >> SpamAssassin >> Configure SpamAssassin (blacklist from),
where you can give the suspicious email address(Used to specify addresses which send mail that is often tagged (incorrectly) as non-spam, but which the user doesn’t want).