When using email at Hostinger, you can be sure that our servers already have the most advanced spam blocking tools installed, in addition to the standard anti-spam measures such as SPF, DKIM, and blacklist checking.
However, if you are still receiving some unwanted messages, you can simply prevent them from reaching your inbox by creating an email filter.
You can create and manage email filters from Webmail by following this detailed guide:
With an email filter, you can define a specific sender and/or subject keywords identified as spam, as well as automatically archive or delete the message.