> When shutting down davmail, and restarting it, we often get > Microsoft.Exchange.Data.Storage.TooManyObjectsOpenedExceptions when the > client (Thunderbird) reconnects. > > This even happens when exiting Thunderbird before killing davmail. > > ==> Apparently davmail doesn't close its sessions with Exchange, neither > when its client (Thunderbird) closes the session, nor when it exits > (should catch the signal).
Let me quote upstream here: I can confirm that DavMail does not close EWS sessions... however I didn't find any API calls to do this. Those users probably have large folders with in progress sync on DavMail shutdown. I would recommend setting DavMail folder size limit to reduce Exchange load, and/or change Thunderbird to sync less folders and use less parallel connections. My understanding is that there's not much we can do on this. Do the recommendations work around the problem? - setting davmail folder size limit - Thunderbird setup Alex