System recommendations


  • Internet connection

onOffice enterprise

  • PC / laptop with browser
  • Google Chrome in current version (recommended)
  • Mozilla Firefox in current version (recommended)
  • Microsoft Internet Explorer 11
  • Microsoft Edge in current version
  • Apple Safari in current version
  • Minimum resolution 800x600 px

onOffice App

  • Smartphone with iOS or Android in current version
  • Mobile Browser in current version



  • onOffice enterprise
  • onOffice App
  • Alternative e-mail client (limited / only standard e-mail functionality / no activity booking etc.)
  • TLS >= 1.2


  • MX record of the domain at onOffice / direct availability in enterprise
  • MX-Record external: Integration via IMAP, SMTP possible
  • Exchange integration: to be checked individually

Word Upload

Our recommendation

Instead of MS-Office, generate PDF letters from enterprise.


  • Windows 10
  • Word in current version
  • MacOS 10.12 or newer
  • The latest version of Word for Mac

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