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Best Proxmox Mail Gateway Alternatives in 2026

Updated

20 apps from email security gateways ranked against Proxmox Mail Gateway on the same published basis.

  1. 1
    Check Point Harmony SASE Free trial AndroidiOSLinuxMacWeb 7.1
    Proxmox Mail Gateway vs Check Point Harmony SASE
  2. 2
    IRONSCALES Email Protect Free trial AndroidapiiOSWeb 7.0
    Proxmox Mail Gateway vs IRONSCALES Email Protect
  3. 3
    VM Backup Free plan apiLinuxself-hostedWin Free6.4
    Proxmox Mail Gateway vs VM Backup
  4. 4
    Mailprotector Free plan apiWeb Free6.3
    Proxmox Mail Gateway vs Mailprotector
  5. 5
    Rspamd Free plan LinuxMacself-hosted £100/mo6.3
    Proxmox Mail Gateway vs Rspamd
  6. 6
    Xeams Free plan apiLinuxMacself-hostedWeb $25/mo6.3
    Proxmox Mail Gateway vs Xeams
  7. 7
    Hermes Secure Email Gateway Free plan Linuxself-hosted $62.50/mo6.2
    Proxmox Mail Gateway vs Hermes Secure Email Gateway
  8. 8
    MailScanner Free plan Linuxself-hosted Free6.2
    Proxmox Mail Gateway vs MailScanner
  9. 9
    Mimecast Data Leak Prevention Web 5.8
    Proxmox Mail Gateway vs Mimecast Data Leak Prevention
  10. 10
    Abnormal Email Security apiWeb 5.7
    Proxmox Mail Gateway vs Abnormal Email Security
  11. 11
    Proxmox Backup Server LinuxWeb €46.67/mo5.7
    Proxmox Mail Gateway vs Proxmox Backup Server
  12. 12
    Sophos Secure Message Free trial Web 5.6
    Proxmox Mail Gateway vs Sophos Secure Message
  13. 13
    Fortra Data Security Posture Management apiself-hostedWeb 5.5
    Proxmox Mail Gateway vs Fortra Data Security Posture Management
  14. 14
    SpamHero Business Email Security Free trial apiWeb $5/mo5.5
    Proxmox Mail Gateway vs SpamHero Business Email Security
  15. 15
    SpamTitan Gateway Free trial self-hostedWeb 5.5
    Proxmox Mail Gateway vs SpamTitan Gateway
  16. 16
    Sublime Security Web 5.5
    Proxmox Mail Gateway vs Sublime Security
  17. 17
    Darktrace / EMAIL apiWeb 5.4
    Proxmox Mail Gateway vs Darktrace / EMAIL
  18. 18
    FortiMail Email Security 5.4
    Proxmox Mail Gateway vs FortiMail Email Security
  19. 19
    LevelBlue AppDetectivePRO Free trial self-hostedWebWin 5.4
    Proxmox Mail Gateway vs LevelBlue AppDetectivePRO
  20. 20
    Libraesva Email Security Free trial self-hostedWeb 5.4
    Proxmox Mail Gateway vs Libraesva Email Security

Proxmox Mail Gateway alternatives compared

#AppScoreFree planFromRuns on
1Check Point Harmony SASE7.1No—Android, iOS, Linux, Mac, Web, Windows
2IRONSCALES Email Protect7.0No—Android, API, iOS, Web
3VM Backup6.4Free planFreeAPI, Linux, self-hosted, Windows
4Mailprotector6.3Free planFreeAPI, Web
5Rspamd6.3Free plan£100/moLinux, Mac, self-hosted
6Xeams6.3Free plan$25/moAPI, Linux, Mac, self-hosted, Web, Windows
7Hermes Secure Email Gateway6.2Free plan$62.50/moLinux, self-hosted
8MailScanner6.2Free planFreeLinux, self-hosted
9Mimecast Data Leak Prevention5.8No—Web
10Abnormal Email Security5.7No—API, Web
11Proxmox Backup Server5.7No€46.67/moLinux, Web
12Sophos Secure Message5.6No—Web
13Fortra Data Security Posture Management5.5No—API, self-hosted, Web
14SpamHero Business Email Security5.5No$5/moAPI, Web
15SpamTitan Gateway5.5No—self-hosted, Web
16Sublime Security5.5No—Web
17Darktrace / EMAIL5.4No—API, Web
18FortiMail Email Security5.4No——
19LevelBlue AppDetectivePRO5.4No—self-hosted, Web, Windows
20Libraesva Email Security5.4No—self-hosted, Web
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Questions about Proxmox Mail Gateway alternatives

What is the best alternative to Proxmox Mail Gateway?

Check Point Harmony SASE, number 1 in email security gateways with a score of 7.1 out of 10. The others here: IRONSCALES Email Protect, VM Backup, Mailprotector and 16 more.

What is the best free alternative to Proxmox Mail Gateway?

VM Backup is the best-ranked alternative with a free plan. 6 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked mobile-first: a phone app alongside the web or desktop product, a free tier and the depth of its documentation.