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Best Mimecast Secure Messaging Alternatives in 2026

12 apps from email encryption software ranked against Mimecast Secure Messaging on the same published basis.

  1. 1
    Lockbin Free plan LinuxMacWebWin $10/mo6.6
    Mimecast Secure Messaging vs Lockbin
  2. 2
    DataMotion Secure Email Exchange Free trial AndroidapiiOSWeb 6.5
    Mimecast Secure Messaging vs DataMotion Secure Email Exchange
  3. 3
    SecureMyEmail Free plan WinMaciOSAndroid Free6.5
    Mimecast Secure Messaging vs SecureMyEmail
  4. 4
    Encryptomatic OpenPGP Win $2.50/mo6.4
    Mimecast Secure Messaging vs Encryptomatic OpenPGP
  5. 5
    gpg4o Free plan Win €99.95/mo6.4
    Mimecast Secure Messaging vs gpg4o
  6. 6
    Gpg4win Win 6.4
    Mimecast Secure Messaging vs Gpg4win
  7. 7
    Mailvelope Free trial extensionWeb €3/mo6.4
    Mimecast Secure Messaging vs Mailvelope
  8. 8
    PDF Postman Win $79.99/mo6.4
    Mimecast Secure Messaging vs PDF Postman
  9. 9
    c.Email Free plan extension Free6.3
    Mimecast Secure Messaging vs c.Email
  10. 10
    FlowCrypt Free plan extension Free6.3
    Mimecast Secure Messaging vs FlowCrypt
  11. 11
    Secure Message WebLinux 6.3
    Mimecast Secure Messaging vs Secure Message
  12. 12
    Send It Secure 6.3
    Mimecast Secure Messaging vs Send It Secure
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