MX Guarddog vs Proxmox Mail Gateway

MX Guarddog8.7Visit Proxmox Mail Gateway7.9Visit

Higher score MX Guarddog #3 in Email Anti-Spam Software 8.7/10 Free plan · 30-day trial Free planFree trial✓ 2 of 3 features Visit MX Guarddog

vs

Proxmox Mail Gateway #8 in Email Anti-Spam Software 7.9/10 Open source ✓ 0 of 3 features Visit Proxmox

• MX Guarddog fits best

  Budget-conscious domain owners

• Proxmox Mail Gateway fits best

  Self-hosted teams wanting a full mail gateway

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Side by side

Feature	MX Guarddog 8.7/10 Visit ↗	Proxmox Mail Gateway 7.9/10 Visit ↗
At a glance
Editor score	8.7	7.9
Ranking	#3 in Email Anti-Spam Software	#8 in Email Anti-Spam Software
Best for	Budget-conscious domain owners	Self-hosted teams wanting a full mail gateway
Pricing model	Free plan + paid	Paid
Starting price	$0.25/unit/mo	€190/yr
Free plan	✓ (best)	—
Free trial	30 days	—
Deployment	Cloud	Cloud, Desktop, Self-hosted
Platforms	Web	Web, Linux
Integrations	3 integrations	5 integrations
Features MX Guarddog 2/3 · Proxmox Mail Gateway 0/3
Phishing detection	✓ (best)	Not checked yet
Malware scanning	✓ (best)	Not checked yet
Attachment scanning	Not checked yet	Not checked yet
Specs
Quarantine access	User_and_admin	Not checked yet
Supported mail platforms	Standard SMTP email servers for owned domains; not consumer Gmail or Hotmail accounts	Not checked yet
Quarantine retention	7 days	Not checked yet
Deployment type	Cloud_gateway	Not checked yet
Our review
Pros	Spam, phishing, malware and virus scanning Quarantine access with message release and reports 168-hour outage spooling with TLS encryption	Scans inbound and outbound mail with SpamAssassin and ClamAV Extensive SMTP filtering, policy rules, quarantine, and mail actions Includes tracking, unified logs, clustering, web, CLI, and API administration
Cons	Does not support consumer Gmail or Hotmail accounts Designed for owned domains using standard SMTP servers Free access requires visible website text links to earn tokens	Requires gateway deployment between the firewall and internal mail server Annual subscriptions are priced per host, starting at €190 Support depth varies substantially by subscription tier
Our verdict	MX Guarddog is a hosted email security service for organizations, individuals and domain owners operating their own email servers. It routes incoming mail through MX Guarddog data centers, scans messages for spam, phishing, malware and… Read the review →	Proxmox Mail Gateway is an open-source mail proxy for organizations that need to inspect and control inbound and outbound email. It sits between a firewall and an internal mail server, analyzing traffic for spam, viruses, Trojans,… Read the review →

Strengths and trade-offs

• MX Guarddog — where it wins

  • Spam, phishing, malware and virus scanning
  • Quarantine access with message release and reports
  • 168-hour outage spooling with TLS encryption

  Where it doesn't

  • Does not support consumer Gmail or Hotmail accounts
  • Designed for owned domains using standard SMTP servers
  • Free access requires visible website text links to earn tokens

• Proxmox Mail Gateway — where it wins

  • Scans inbound and outbound mail with SpamAssassin and ClamAV
  • Extensive SMTP filtering, policy rules, quarantine, and mail actions
  • Includes tracking, unified logs, clustering, web, CLI, and API administration

  Where it doesn't

  • Requires gateway deployment between the firewall and internal mail server
  • Annual subscriptions are priced per host, starting at €190
  • Support depth varies substantially by subscription tier

• MX Guarddog8.7/10 · Free plan · 30-day trial

  A low-cost cloud gateway for domain owners who run their own email servers.

  Visit MX GuarddogFull verdict →
• Proxmox Mail Gateway7.9/10 · Open source

  A full mail gateway for teams that want self-hosted scanning, rules, quarantine, and logs.

  Visit ProxmoxFull verdict →