Best MSP Email Security tools in 2026

Inline or API-based phishing, BEC and malware filtering per mailbox.

Mesh Security

Mesh

MSP-native email security with an outstanding multi-tenant console, month-to-month billing and PSA-aware provisioning.

$1.75

per mailbox / mo

$1.75–$1.75 quoted

API A

Tenancy 5/5

Month-to-month

No minimum

5.0/5 from 1 MSPs

Check Point

API-based inline email security for M365 with strong BEC detection and no MX record change.

$2.10

per mailbox / mo

$2.10–$2.10 quoted

API B

Tenancy 4/5

1 year

No minimum

4.0/5 from 1 MSPs

Proofpoint

Gateway-based SMB email security with archiving options and a long MSP track record.

$1.85

per mailbox / mo

$1.85–$1.85 quoted

API C

Tenancy 4/5

1 year

25 unit minimum

3.0/5 from 1 MSPs