I don't know if this will help, but from MS Office FAQ is this:
Q. Can I read the encrypted messages over mobile devices?
Yes, you can view messages on Android and iOS by downloading the OME Viewer apps from the Google Play store and the Apple App store.
Open the HTML attachment in the OME Viewer app and then follow the
instructions to open your encrypted message. For other mobile devices,
you can open the HTML attachment as long as your mail client supports
Form Post.
It seems Microsoft does not want to share its secret encryption method, thus making it almost totally useless :-(
HTH
Martin
<p>I don't know if this will help, but from MS Office FAQ is this:</p><p> <strong>Q. Can I read the encrypted messages over mobile devices?</strong> </p> <p>Yes, you can view messages on Android and iOS by downloading the OME Viewer apps from the <a href="http://go.microsoft.com/fwlink/?LinkID=525995&amp;clcid=0x409">Google Play store</a> and the <a href="http://go.microsoft.com/fwlink/?LinkID=525996&amp;clcid=0x409">Apple App store</a>.
Open the HTML attachment in the OME Viewer app and then follow the
instructions to open your encrypted message. For other mobile devices,
you can open the HTML attachment as long as your mail client supports
Form Post.</p><p>It seems Microsoft does not want to share its secret encryption method, thus making it almost totally useless :-(</p><p>HTH
</p><p>Martin
</p><p>&nbsp;</p>