Comment 2 for bug 1021183

This bug affects me as well.

I did not encounter locks of the ldap account though.
But the hyper-activity of Evolution leads to maximum i/o usage which sooner or later blocks the whole system. It is really hard to close Evolution then, because even the mouse pointer needs minutes to move ...
It takes approx. 3-4 hours until this behaviour occurs.

The Exchange email account is used in parallel from 2 other clients as well (Outlook).

Ubuntu 12.04 x64
Kernel 3.2.0-29-generic
Evolution 3.2.3-0ubuntu6
evolution-mapi 3.2.2-1
Exchange Server 8.3.83.0