Sophos Email vs Proxmox Mail Gateway

Sophos Email9.1Visit Proxmox Mail Gateway8.7Visit

Higher score Sophos Email #3 in Secure Email Gateway Software 9.1/10 Pricing on request · 30-day trial Free trial✓ 0 of 5 features Visit Sophos

vs

Proxmox Mail Gateway #7 in Secure Email Gateway Software 8.7/10 Open source ✓ 0 of 5 features Visit Proxmox

• Sophos Email fits best

  Organizations using Microsoft 365 or Google Workspace

• Proxmox Mail Gateway fits best

  Teams self-hosting an inbound and outbound mail gateway

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Side by side

Feature	Sophos Email 9.1/10 Visit ↗	Proxmox Mail Gateway 8.7/10 Visit ↗
At a glance
Editor score	9.1	8.7
Ranking	#3 in Secure Email Gateway Software	#7 in Secure Email Gateway Software
Best for	Organizations using Microsoft 365 or Google Workspace	Teams self-hosting an inbound and outbound mail gateway
Pricing model	Paid	Paid
Starting price	—	€190/yr
Free plan	—	—
Free trial	30 days	—
Deployment	Cloud	Cloud, Desktop, Self-hosted
Platforms	Web	Web, Linux
Integrations	5 integrations	5 integrations
Features Sophos Email 0/5 · Proxmox Mail Gateway 0/5
Malware sandboxing	Not checked yet	Not checked yet
Outbound DLP	Not checked yet	Not checked yet
Email encryption	Not checked yet	Not checked yet
Continuity spooling	Not checked yet	Not checked yet
Email archiving	Not checked yet	Not checked yet
Specs
Deployment	Not checked yet	Not checked yet
Our review
Pros	Detects phishing, malware, impersonation, and BEC threats Combines sandboxing, URL checks, and QR-code threat detection Adds DLP, encryption, and post-delivery email clawback	Scans inbound and outbound email for spam and viruses Offers configurable SMTP, content, and policy rules with quarantine Supports high-availability clustering and centralized configuration
Cons	Pricing is quote-based rather than publicly listed No perpetual free plan Advanced protection and reporting are reserved for Email Plus	Requires self-hosting between the firewall and internal mail server Annual subscriptions are priced per host, not per user Advanced impersonation protection and malware sandboxing are not verified
Our verdict	Sophos Email is a cloud-managed email security product for business, educational, and government organizations. It is aimed at teams that want protection against phishing, malware, spam, ransomware delivery, business email compromise, and… Read the review →	Proxmox Mail Gateway is an open-source mail proxy that sits between a firewall and an internal mail server to inspect incoming and outgoing email. It is aimed at teams that want to self-host an SMTP security gateway, with deployment on… Read the review →

Strengths and trade-offs

• Sophos Email — where it wins

  • Detects phishing, malware, impersonation, and BEC threats
  • Combines sandboxing, URL checks, and QR-code threat detection
  • Adds DLP, encryption, and post-delivery email clawback

  Where it doesn't

  • Pricing is quote-based rather than publicly listed
  • No perpetual free plan
  • Advanced protection and reporting are reserved for Email Plus

• Proxmox Mail Gateway — where it wins

  • Scans inbound and outbound email for spam and viruses
  • Offers configurable SMTP, content, and policy rules with quarantine
  • Supports high-availability clustering and centralized configuration

  Where it doesn't

  • Requires self-hosting between the firewall and internal mail server
  • Annual subscriptions are priced per host, not per user
  • Advanced impersonation protection and malware sandboxing are not verified

• Sophos Email9.1/10 · Pricing on request · 30-day trial

  Broad email protection for organizations that need threat detection and user controls.

  Visit SophosFull verdict →
• Proxmox Mail Gateway8.7/10 · Open source

  A self-hosted SMTP gateway with broad filtering controls and annual per-host support plans.

  Visit ProxmoxFull verdict →