You are responsible for making backups of your entire mailbox data on a regular basis. Here we'll show you how to do frequent backups of your online data:

• Microsoft publishes a very nice tool for Outlook that makes backup of your data easy. You can download it here directly from Microsoft:
  • After installing it you find a new Menu option in Outlook
  • Click on File --> Backup Copy and follow the backup steps.
• You can do it manually as well:
• Open Outlook, click File --> Import/Export --> Continue.
  Choose Export to a file --> Personal Folder File (.pst) --> Continue.
  Choose the folder you wish to export (if in doubt just choose the topmost folder) and click on it. "Include subfolders" should be checked.
  Choose a location to store the file (e.g. "Desktop") --> Complete.
  Click "OK".
  Wait for the export to go through without any errors; this may take some time depending on the size of your Outlook data files. You should save the export file in a secure location.

• If you are using the Desktop Application (Windows, Mac, Linux, see Downloads section), then backups are very easy:
  • Click on Preferences (Options) --> Import/Export
  • In the "Export" section, activate "All Folders", check the box "Advanced Settings"
  • Choose what to export (Mail, Contacts, Calendars, ...)
  • Click on the "Export" button.

• For users of other applications we have an easy backup solution as well:
  • Log in to interWaysMAIL  Webmail (https://ssl.interways.de)
  • Click on "Preferences" (Options)
  • Click on Calendar
  • 
  • Click on "Export as .ICS File" in the "Import/Export" section
  • Save the exported file on your computer or external backup media
  • 
  • Click on Address Boook
  • Choose a file format (Standard: Outlook 2003 csv) in the "Import/Export" section.
  • Click on "Export"
  • 
  • Save the exported file on your computer or external backup media
  • For Emails: Use an application like Thunderbird or others for POP3 download of your mails to your computer (see: Server Settings)
  • Frequently download your mails to your computer using this application

• Apple iCal and Address Book users can backup using the built-in export functions (follow Setting up the Apple iSync Connectors export description)

Please make your backups frequently (best: daily) and thoroughly.

The backup files created following these steps are standards-conforming and can be used with most applications and providers.