Proxmox Mail Gateway - Protect mail server against spam, viruses and malware with Proxmox Mail Gateway security for businesses, government, education and non-profit organizations.

Algolia - Algolia's Search API makes it easy to deliver a great search experience in your apps & websites. Algolia Search provides hosted full-text, numerical, faceted and geolocalized search.

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

Optimizely - A/B testing you'll actually use.

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

Namogoo - Namogoo wins back online stolen revenue by blocking unauthorized ads injected into visitor sessions.