E-mails downloaded via exchange server: "this message has no content"

E-mails downloaded via exchange server: "this message has no content"

Hi,

A few weeks ago, I set up an MS Exchange access to my Zoho account on my iPhone, as explained here: http://zsync.zohosites.com/iPhone.html

The mails and calendar have been syncing perfectly until 3h hours ago.

Now, the e-mails I receive on my iPhone are all empty and all show "this message has no content" and "This message has not be downloaded from the server". I have to go online to get the content.

I also noted that Zoho webmail does not use my company logo, but the default Zoho business logo: https://contacts.zoho.com/file?t=org&ID=9c2c893ad72d3b532643bba5050514800a70fda589c0827a7a2c718f7dc5b8f0df9024b7529a7a4f9ced1dfaa3d2d261&time=Wed%20Jun%2018%2003:58:09%20PDT%202014