This article provides information on how to set up email archiving with Mail2Cloud for several different email services.
Configuring Google Apps for Mail2Cloud Archiving
Configuring Office 365 for Mail2Cloud Archiving [coming soon]
Configuring Zimbra for Mail2Cloud Archiving [coming soon]
Configuring Postfix or Postfix based email for Mail2Cloud Archiving [coming soon]
Are you ever going to update documentation for Office 365??? Its been over a year!