Best Email Security Gateways in 2026
Updated
In short: Check Point Harmony SASE is ranked #1 of 31 as of 4 October 2026, ahead of VM Backup and IRONSCALES Email Protect. The best-ranked option with a free plan is VM Backup. The lowest first paid tier on this page is SpamHero Business Email Security at $5/mo.
For organizations evaluating email protection, gateway software can be compared by the environments it supports and the controls it specifies. Check Google Workspace and Microsoft 365 support, then consider impersonation protection, malware sandboxing, and outbound filtering as separate capabilities. Deployment model can help clarify how a product is offered, while free-plan availability and paid-from pricing add cost context. Check Point Harmony SASE, IRONSCALES Email Protect, and Libraesva Email Security are among the named options. Use these comparison points to focus on the platforms and protections relevant to the mail systems you manage.
31 email security gateways ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
31ranked
2free plans on this page
$5/molowest paid tier
4 Oct 2026last checked
Input list Email Security Gateways 25 channels on this page · 142 of 200 spec lines stated by the makers
Ch Tool Free planPaid fromOutbound filteringImpersonation protectionMalware sandboxingDeployment modelMicrosoft 365 supportGoogle Workspace support Spec sheet Score
01 Check Point Harmony SASE Free planNoPaid fromnot statedOutbound filteringYesImpersonation protectionYesMalware sandboxingYesDeployment modelhybridMicrosoft 365 supportYesGoogle Workspace supportYes 7/8spec lines stated 7.7
02 VM Backup Free planNoPaid fromnot statedOutbound filteringYesImpersonation protectionYesMalware sandboxingYesDeployment modelhybridMicrosoft 365 supportYesGoogle Workspace supportNo 7/8spec lines stated 7.6
03 IRONSCALES Email Protect Free planNoPaid fromnot statedOutbound filteringNoImpersonation protectionYesMalware sandboxingYesDeployment modelcloudMicrosoft 365 supportYesGoogle Workspace supportYes 7/8spec lines stated 6.9
04 Mailprotector Free plannot statedPaid fromnot statedOutbound filteringYesImpersonation protectionYesMalware sandboxingnot statedDeployment modelgatewayMicrosoft 365 supportYesGoogle Workspace supportYes 5/8spec lines stated 6.8
05 LevelBlue AppDetectivePRO Free plannot statedPaid fromnot statedOutbound filteringYesImpersonation protectionYesMalware sandboxingYesDeployment modelnot statedMicrosoft 365 supportYesGoogle Workspace supportYes 5/8spec lines stated 6.7
06 SpamHero Business Email Security Free planNoPaid fromnot statedOutbound filteringYesImpersonation protectionYesMalware sandboxingnot statedDeployment modelcloudMicrosoft 365 supportYesGoogle Workspace supportYes 6/8spec lines stated 6.7
07 Libraesva Email Security Free planNoPaid fromnot statedOutbound filteringYesImpersonation protectionYesMalware sandboxingYesDeployment modelhybridMicrosoft 365 supportYesGoogle Workspace supportYes 7/8spec lines stated 6.6
08 Mimecast Data Leak Prevention Free planNoPaid fromnot statedOutbound filteringYesImpersonation protectionYesMalware sandboxingYesDeployment modelcloudMicrosoft 365 supportYesGoogle Workspace supportYes 7/8spec lines stated 6.6
09 Proxmox Backup Server Free planNoPaid fromnot statedOutbound filteringYesImpersonation protectionnot statedMalware sandboxingnot statedDeployment modelgatewayMicrosoft 365 supportnot statedGoogle Workspace supportnot stated 3/8spec lines stated 6.6
10 SpamTitan Gateway Free planNoPaid from1.95/user/moOutbound filteringYesImpersonation protectionYesMalware sandboxingYesDeployment modelgatewayMicrosoft 365 supportYesGoogle Workspace supportYes 8/8spec lines stated 6.6
11 Abnormal Email Security Free plannot statedPaid fromnot statedOutbound filteringYesImpersonation protectionYesMalware sandboxingnot statedDeployment modelcloudMicrosoft 365 supportYesGoogle Workspace supportYes 5/8spec lines stated 6.4
12 Darktrace / EMAIL Free planNoPaid fromnot statedOutbound filteringYesImpersonation protectionYesMalware sandboxingYesDeployment modelcloudMicrosoft 365 supportYesGoogle Workspace supportYes 7/8spec lines stated 6.3
13 Fortra Data Security Posture Management Free plannot statedPaid fromnot statedOutbound filteringYesImpersonation protectionnot statedMalware sandboxingYesDeployment modelapplianceMicrosoft 365 supportYesGoogle Workspace supportYes 5/8spec lines stated 6.2
14 Symantec IT Management Suite Free plannot statedPaid fromnot statedOutbound filteringYesImpersonation protectionYesMalware sandboxingYesDeployment modelcloudMicrosoft 365 supportYesGoogle Workspace supportYes 6/8spec lines stated 6.2
15 Xeams Free planYesPaid from1.67/user/moOutbound filteringYesImpersonation protectionnot statedMalware sandboxingYesDeployment modelgatewayMicrosoft 365 supportYesGoogle Workspace supportnot stated 6/8spec lines stated 6.2
16 Proxmox Mail Gateway Free planNoPaid fromnot statedOutbound filteringYesImpersonation protectionnot statedMalware sandboxingnot statedDeployment modelgatewayMicrosoft 365 supportnot statedGoogle Workspace supportnot stated 3/8spec lines stated 6.1
17 Sophos Secure Message Free planNoPaid fromnot statedOutbound filteringYesImpersonation protectionYesMalware sandboxingYesDeployment modelcloudMicrosoft 365 supportYesGoogle Workspace supportYes 7/8spec lines stated 6.1
18 Sublime Security Free planYesPaid fromnot statedOutbound filteringYesImpersonation protectionYesMalware sandboxingYesDeployment modelhybridMicrosoft 365 supportYesGoogle Workspace supportYes 7/8spec lines stated 6.1
19 Cloudflare Email Security Free planNoPaid fromnot statedOutbound filteringYesImpersonation protectionYesMalware sandboxingYesDeployment modelhybridMicrosoft 365 supportYesGoogle Workspace supportYes 7/8spec lines stated 6.0
20 Paubox Email Encryption Free planNoPaid fromnot statedOutbound filteringnot statedImpersonation protectionnot statedMalware sandboxingnot statedDeployment modelnot statedMicrosoft 365 supportnot statedGoogle Workspace supportnot stated 1/8spec lines stated 6.0
21 FortiMail Email Security Free plannot statedPaid fromnot statedOutbound filteringYesImpersonation protectionYesMalware sandboxingYesDeployment modelhybridMicrosoft 365 supportYesGoogle Workspace supportYes 6/8spec lines stated 5.8
22 INKY Email Security Free plannot statedPaid fromnot statedOutbound filteringYesImpersonation protectionYesMalware sandboxingnot statedDeployment modelcloudMicrosoft 365 supportYesGoogle Workspace supportYes 5/8spec lines stated 5.8
23 Rspamd Free planYesPaid fromnot statedOutbound filteringYesImpersonation protectionYesMalware sandboxingnot statedDeployment modelgatewayMicrosoft 365 supportnot statedGoogle Workspace supportnot stated 4/8spec lines stated 5.8
24 N-able Mail Assure Free planNoPaid fromnot statedOutbound filteringYesImpersonation protectionYesMalware sandboxingnot statedDeployment modelcloudMicrosoft 365 supportYesGoogle Workspace supportYes 6/8spec lines stated 5.7
25 Perception Point Advanced Email Security Free plannot statedPaid fromnot statedOutbound filteringYesImpersonation protectionYesMalware sandboxingnot statedDeployment modelcloudMicrosoft 365 supportYesGoogle Workspace supportYes 5/8spec lines stated 5.7
Compare all 25 in a table
| # | Tool | Score | Free plan | From | Free plan | Paid from | Outbound filtering | Impersonation protection |
|---|---|---|---|---|---|---|---|---|
| 1 | Check Point Harmony SASE | 7.7 | No | — | No | — | Yes | Yes |
| 2 | VM Backup | 7.6 | Free plan | Free | No | — | Yes | Yes |
| 3 | IRONSCALES Email Protect | 6.9 | No | — | No | — | No | Yes |
| 4 | Mailprotector | 6.8 | Free plan | Free | — | — | Yes | Yes |
| 5 | LevelBlue AppDetectivePRO | 6.7 | No | — | — | — | Yes | Yes |
| 6 | SpamHero Business Email Security | 6.7 | No | $5/mo | No | — | Yes | Yes |
| 7 | Libraesva Email Security | 6.6 | No | — | No | — | Yes | Yes |
| 8 | Mimecast Data Leak Prevention | 6.6 | No | — | No | — | Yes | Yes |
| 9 | Proxmox Backup Server | 6.6 | No | €46.67/mo | No | — | Yes | — |
| 10 | SpamTitan Gateway | 6.6 | No | — | No | 1.95 /user/mo | Yes | Yes |
| 11 | Abnormal Email Security | 6.4 | No | — | — | — | Yes | Yes |
| 12 | Darktrace / EMAIL | 6.3 | No | — | No | — | Yes | Yes |
| 13 | Fortra Data Security Posture Management | 6.2 | No | — | — | — | Yes | — |
| 14 | Symantec IT Management Suite | 6.2 | No | — | — | — | Yes | Yes |
| 15 | Xeams | 6.2 | No | — | Yes | 1.67 /user/mo | Yes | — |
| 16 | Proxmox Mail Gateway | 6.1 | No | €15.83/mo | No | — | Yes | — |
| 17 | Sophos Secure Message | 6.1 | No | — | No | — | Yes | Yes |
| 18 | Sublime Security | 6.1 | No | — | Yes | — | Yes | Yes |
| 19 | Cloudflare Email Security | 6.0 | No | — | No | — | Yes | Yes |
| 20 | Paubox Email Encryption | 6.0 | No | $29/mo | No | — | — | — |
| 21 | FortiMail Email Security | 5.8 | No | — | — | — | Yes | Yes |
| 22 | INKY Email Security | 5.8 | No | — | — | — | Yes | Yes |
| 23 | Rspamd | 5.8 | No | — | Yes | — | Yes | Yes |
| 24 | N-able Mail Assure | 5.7 | No | — | No | — | Yes | Yes |
| 25 | Perception Point Advanced Email Security | 5.7 | No | — | — | — | Yes | Yes |
Is your tool on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which email security gateway is ranked first on Specifiction?
Check Point Harmony SASE is ranked #1 of 31 with a score of 7.7. VM Backup is second and IRONSCALES Email Protect third.
How many of these have a free plan?
2 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, SpamHero Business Email Security has the lowest first paid tier we found: $5/mo.
How is this list ranked?
Ranked on what each maker publishes, the fullest spec sheet first: how deeply the product is documented, the platforms it runs on, a free tier or trial to test it, and its standing. Paid placements never change a rank.