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Best Microsoft Exchange Online Alternatives in 2026

12 apps from email encryption software ranked against Microsoft Exchange Online on the same published basis.

  1. 1
    DataMotion Secure Email Exchange Free trial AndroidapiiOSWeb 7.8
    Microsoft Exchange Online vs DataMotion Secure Email Exchange
  2. 2
    SecureMyEmail Free plan WinMaciOSAndroid Free7.5
    Microsoft Exchange Online vs SecureMyEmail
  3. 3
    Proofpoint Email DLP and Encryption AndroidiOSWebWin 7.1
    Microsoft Exchange Online vs Proofpoint Email DLP and Encryption
  4. 4
    Virtru Email Encryption WebWinMaciOSAndroid $119/mo6.9
    Microsoft Exchange Online vs Virtru Email Encryption
  5. 5
    FlowCrypt Free plan extension Free6.4
    Microsoft Exchange Online vs FlowCrypt
  6. 6
    gpg4o Free plan Win €99.95/mo6.4
    Microsoft Exchange Online vs gpg4o
  7. 7
    Lockbin Free plan LinuxMacWebWin $10/mo6.4
    Microsoft Exchange Online vs Lockbin
  8. 8
    Mailvelope Free trial extensionWeb €3/mo6.4
    Microsoft Exchange Online vs Mailvelope
  9. 9
    c.Email Free plan extension Free6.3
    Microsoft Exchange Online vs c.Email
  10. 10
    Encryptomatic OpenPGP Win $2.50/mo6.3
    Microsoft Exchange Online vs Encryptomatic OpenPGP
  11. 11
    Gpg4win Win 6.3
    Microsoft Exchange Online vs Gpg4win
  12. 12
    PDF Postman Win $79.99/mo6.3
    Microsoft Exchange Online vs PDF Postman
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