interWays :: The Power of Excellence

View shared calendars on your iPhone, iPad, Android and Windows Phone

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Now new: Display other users' shared Calendars on your iPhone, iPad, Android phone or Windows Phone and Mobile device!

Beginning with iPhone OS 3.0, everything you need is already on your phone!

For Windows Mobile devices you need e.g. Sianix Calendar Sync (

Android users please install this app from the Android Market: CalDAV-Sync for Android.


  • The user sharing his/her calendar must activate sharing for the calendar and set your interWaysMAIL email address as allowed user, see instructions here (Support area-->Share calendars, folders, ...)!
  • Add new account (iPhone OS 3: Settings-->Mail, Contacts, Calendars-->Add Account-->Other-->CalDAV)
  • choose CalDAV Server Calendar
  • Description: type a name
  • Server:
  • User: Your own interWaysMAIL email address
  • Password: your password
  • Continue
  • "Cancel" the SSL warning message
  • Go to "Advanced Settings" tab
  • Change Port to 443
  • Finish
  • Now you can choose all calendars (even shared ones) in the calendar application.

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Language: English


Recently, we introduced 2 factor authentication (TOTP: time-based one-time passwords) to our network to strengthen security for your accounts. You can use this method to generate an additional login number on your smartphone when logging into your account.

interWays is ready for the iPhone X! Welcome to our network.

NEW: We strive to be your preferred provider for innovative mail and calendaring applications. That's why we have introduced many new features recently. Click here for more info!
For up-to-date-infos regarding Windows 10 support, please read here!
interWays supports the new Outlook for iOS (Apple) and Android! Of course we will continue full support for the integrated system clients as well. Both Apps can be found in the App Stores.
interWays supports Email transport encryption for many years now. More on this...
interWays is ready for the iPhone 5S/5C and iOS 7!
NEW: We support all current Android and Blackberry phones for full Mail, Contacts and Calendar sync!
interWays has started doing all money transfers with Euro customers via SEPA.
Office and Outlook 2013: Click here!
interWays is ready for Windows 8 and Windows 8.1!
interWays is ready for Windows Phone 8!
New connectors for Outlook and Mac available in our downloads area!
interWays is ready for iOS 5 and iPhone 4S ! All features work right out of the box for iOS 5, now with Tasks sync.
interWays is ready for Mac OS 10.7 Lion. Details can be found here...

Many new features and improvements with our latest update! See here...

Recommend a Friend - earn free months...
NEW: Effective now, you can use shared calendars on your iPhone and Android phone! See here for setup...

NEW: We now offer verified (address checked) email addresses under the domain! See "Products" for details...

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