Freedom251
For vendors
AdvertiseTop spots, featured rows, home sponsor Get listedAdd a product we don't cover yet Claim a listingFree: verify the domain, then correct your page Vendor dashboardNumbers, orders and placements
Vendor dashboard

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
    Lockbin Free plan LinuxMacWebWin $10/mo6.6
    Microsoft Exchange Online vs Lockbin
  2. 2
    SecureMyEmail Free plan WinMaciOSAndroid Free6.5
    Microsoft Exchange Online vs SecureMyEmail
  3. 3
    gpg4o Free plan Win €99.95/mo6.4
    Microsoft Exchange Online vs gpg4o
  4. 4
    c.Email Free plan extension Free6.3
    Microsoft Exchange Online vs c.Email
  5. 5
    FlowCrypt Free plan extension Free6.3
    Microsoft Exchange Online vs FlowCrypt
  6. 6
    DataMotion Secure Email Exchange Free trial AndroidapiiOSWeb 5.6
    Microsoft Exchange Online vs DataMotion Secure Email Exchange
  7. 7
    Mimecast Secure Messaging WebWinMac 5.5
    Microsoft Exchange Online vs Mimecast Secure Messaging
  8. 8
    RMail WebWinMac 5.5
    Microsoft Exchange Online vs RMail
  9. 9
    Encryptomatic OpenPGP Win $2.50/mo5.4
    Microsoft Exchange Online vs Encryptomatic OpenPGP
  10. 10
    Gpg4win Win 5.4
    Microsoft Exchange Online vs Gpg4win
  11. 11
    Mailvelope Free trial extensionWeb €3/mo5.4
    Microsoft Exchange Online vs Mailvelope
  12. 12
    PDF Postman Win $79.99/mo5.4
    Microsoft Exchange Online vs PDF Postman
Make your app an alternative to Microsoft Exchange Online

The sponsored alternative slot on this page is labelled and never changes the order above.

See the price