mailbe.at supports Active Sync and thus Microsoft Exchange Servers.
Because of the extensive possibilities to setup up an exchange server it is more complicated to write an app that fulfils all needs and to predict every use case.
mailbe.at was successfully tested with Microsoft Exchange 2007 and 2010
Tested web services are: Google Apps, Outlook.com, T-Online, Hostedoffice, Qualityhosting, Office 365
mailbe.at supports TLS/SSL connections
Mailbe.at synchronizes emails, folders, contacts and calendars. To-Dos and notes are not supported until now.
Setup / user credentials
In most cases a combination of email address and password works, sometimes just the username or domain\username is needed. Please ask your admin if you're not sure which one to use.