SpamAssassin - Use this program to "Unspam" your mailbox(es).

Imperva Cloud Application Security - Deploy your applications and data where you want. When you want. Imperva keeps them secure in the cloud, on premises, and in hybrid clouds.

Oikik Antispam - Oikik is a cloud-based email filtering service that works with your existing email service.

Incapsula - Incapsula is a Security CDN that makes any website safer, faster and more reliable. 5 minute setup will make a world of difference.

Rspamd - Rspamd is an advanced spam filtering system that allows evaluation of messages by a number of rules...

Sucuri - Website Protection, Malware Removal, and Blacklist Prevention