Please describe the problem:
Using Evolution, I try to send a file (any file) from my desktop by right-clicking on that particular file and selecting "Send to..." from the context menu. 

Sometimes I get a menu to select a user from, sometimes I don't. When I do, it has worked so far ONCE to send the file successfully, but that was to a local user. However, users stored on the Exchange server cannot be searched from that dialog

Everytime an error-message pertaining to "Lost connection to Evolution Exchange backend process" is displayed and Evolution has to be restarted to regain that connection. 



Evolution has to be restarted to re-connect to the Exchange backend.

Steps to reproduce:
1. Right-click on any file you want to send on desktop
2. Choose "send to..." dialogue
3. Try to send the file
4. Watch the outcome :)


Actual results:
The following error-message is displayed:
"Lost connection to Evolution Exchange backend process"

Expected results:
I would expect to be able to send a file from the "Send to..." dialogue utilizing the Exchange backend for addresses without that task failing.

Does this happen every time?
With all versions prior to 2.10.x, it happens every time. Now, it seems to at least display the initial sending dialog, but the connector still goes... 

Other information: