Have tried everything, unfortunately, still no e-mails.
Devices look like this:
Android | Android/4.3-EAS-1.3Sun, 09 Mar 2014 00:47:33 +0000 4048... Provisioned
WindowsOutlook15 | Outlook/15.0 (15.0.4551.1507; MSI; x86)Sun, 09 Mar 2014 00:34:38 +0000 0 Not Provisioned
I don't know...