# Private and open-source alternatives to Proofpoint Email Protection

Also covers Proofpoint.

1. [SpamScanner](https://privacyratings.com/spam-filters/spamscanner/) (our pick): B (80/100). Spam, phishing and malware scanner for email written in Node.js by the Forward Email team, used as a library or a command-line tool on your own server.
2. [Amavis](https://privacyratings.com/spam-filters/amavis/): B (80/100). Self-hosted content filter written in Perl that sits between a mail server and scanners such as SpamAssassin and ClamAV, passing each message to them and acting on the results.
3. [Apache SpamAssassin](https://privacyratings.com/spam-filters/spamassassin/): B (80/100). Self-hosted spam filter from the Apache Software Foundation that scores mail with rules, DNS blocklists and Bayesian filtering, used alongside mail servers such as Postfix.
4. [MailScanner](https://privacyratings.com/spam-filters/mailscanner/): B (80/100). Self-hosted email security system written in Perl that scans mail for spam, viruses and phishing using SpamAssassin and antivirus engines, with Postfix, Sendmail and Exim.
5. [Rspamd](https://privacyratings.com/spam-filters/rspamd/): B (80/100). Self-hosted spam filtering system written in C and Lua that checks mail with rules, statistics, fuzzy hashes and DNS lists, and integrates with Postfix, Exim and other mail servers.
6. [Proxmox Mail Gateway](https://privacyratings.com/spam-filters/proxmox-mail-gateway/): C (65/100). Self-hosted email gateway distribution from Proxmox that filters inbound and outbound mail for spam, viruses and phishing, managed through a web interface.
7. [DuoCircle](https://privacyratings.com/spam-filters/duocircle/): F (38/100). Email services company whose products include cloud spam and phishing filtering, backup MX, email forwarding, outbound SMTP relay, and SPF and DMARC management.
8. [Check Point Email Security](https://privacyratings.com/spam-filters/check-point-harmony-email/): F (28/100). Cloud email security service from Check Point, formerly Harmony Email & Collaboration and Avanan. It connects to Microsoft 365 and Google Workspace by API to filter phishing, malware and spam before messages reach the inbox.
9. [N-able Mail Assure](https://privacyratings.com/spam-filters/n-able-mail-assure/): F (25/100). Cloud email security service sold to managed service providers that filters inbound and outbound mail for spam, phishing and malware, with email continuity and encrypted archiving. It works with Microsoft 365 and other mail servers.
10. [Vade](https://privacyratings.com/spam-filters/vade/): F (25/100). AI-based email filtering for Microsoft 365, Google Workspace, internet service providers and mail servers that blocks spam, phishing and malware. Vade merged with Hornetsecurity and is being folded into the Hornetsecurity brand.
11. [SpamHero](https://privacyratings.com/spam-filters/spamhero/): F (22/100). Hosted spam and virus filtering service for organizations with their own domain, set up by pointing MX records at it. It also offers outbound SMTP relay, quarantine, delivery logs and reseller controls for managed service providers.
12. [Trustifi](https://privacyratings.com/spam-filters/trustifi/): F (22/100). Cloud email security service that filters inbound phishing, impersonation and malware, and adds outbound encryption, data loss prevention and archiving for Microsoft 365, Google Workspace and other mail servers.
13. [Libraesva](https://privacyratings.com/spam-filters/libraesva/): F (20/100). Email security gateway from an Italian vendor, deployed on premises or in a private cloud, that filters spam, phishing and malware with local sandboxing and AI models. The company also sells email archiving, DMARC management and phishing training.
14. [Heimdal Email Security](https://privacyratings.com/spam-filters/heimdal-email-security/): F (19/100). Cloud email filtering from Heimdal, a Danish security company, that blocks spam, phishing, malware and business email compromise, managed from the Heimdal dashboard alongside its endpoint security products.
15. [Mailinblack](https://privacyratings.com/spam-filters/mailinblack/): F (19/100). French cloud email security service that filters spam, phishing, ransomware and malicious links for business mailboxes, sold with a password manager and security awareness training.

Source: https://privacyratings.com/alternatives/proofpoint-email-protection/