Best Email Security Gateways in 2026
Updated
31 email security gateways ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
31ranked
0free plans on this page
5 Oct 2026last checked
Email Security Gateways, one module each. A lit port is something its maker publishes; 0 of the 6 on this page have a public API.
- 26 N-able Mail Assure API not on recordOSS not on recordFREE not on recordDOCS 5.0
- 27 Rspamd API not on recordOSS not on recordFREE not on recordDOCS 5.0
- 28 EuropeanMX API not on recordOSS not on recordFREE not on recordDOCS 4.9
- 29 Scrollout F1 API not on recordOSS not on recordFREE not on recordDOCS 4.9
- 30 Spamihilator API not on recordOSS not on recordFREE not on recordDOCS 4.9
- 31 GFI MailEssentials API not on recordOSS not on recordFREE not on recordDOCS 4.8
Compare all 6 in a table
| # | Platform | Score | Free plan | Free plan | Paid from | Outbound filtering | Impersonation protection |
|---|---|---|---|---|---|---|---|
| 26 | N-able Mail Assure | 5.0 | No | No | — | Yes | Yes |
| 27 | Rspamd | 5.0 | No | Yes | — | Yes | Yes |
| 28 | EuropeanMX | 4.9 | No | No | — | Yes | — |
| 29 | Scrollout F1 | 4.9 | No | Yes | — | — | Yes |
| 30 | Spamihilator | 4.9 | No | Yes | — | No | — |
| 31 | GFI MailEssentials | 4.8 | No | No | — | Yes | — |