After installing April 2012 CU on my Search Server 2010 Express, the “Incoming E-Mail” feature stopped working.
E-Mails still land in the drop folder but don’t get picked up by the “Microsoft SharePoint Foundation Incoming E-Mail” timer job. (The default folder is “c:\inetpub\mailroot\drop” if you want to have a look.)
The document libraries / lists will not receive e-mails.
In the ULS log you will start seeing entries like this:
05/01/2012 13:17:12.71 OWSTIMER.EXE (0x14B78) 0x113C4 SharePoint Foundation Monitoring nasq Medium Entering monitored scope (Timer Job job-email-delivery) 0a9e5349-84ef-4669-9bba-2a3c9bd12a0a
05/01/2012 13:17:12.83 OWSTIMER.EXE (0x14B78) 0x113C4 SharePoint Foundation E-Mail 0000 High E-mail cannot be delivered because site is over quota or locked for editing. Site URL: http://sharepoint.christian-heindel.de. 0a9e5349-84ef-4669-9bba-2a3c9bd12a0a
05/01/2012 13:17:12.83 OWSTIMER.EXE (0x14B78) 0x113C4 SharePoint Foundation E-Mail 6871 Information The Incoming E-Mail service has completed a batch. The elapsed time was 00:00:00.1130065. The service processed 1 message(s) in total. Errors occurred processing 1 message(s): Message ID: 0a9e5349-84ef-4669-9bba-2a3c9bd12a0a
This message occurs although no quota limit is set.
Outgoing e-mails still work.
Go to “SharePoint Central Admin > Application Management > Configure Quota and Locks“, set a limit via “Limit site storage to a maximum of:” and press “OK”.
No downtime necessary. No data loss. (E-mails will get collected in the drop folder until SharePoint starts picking them up again.)
Looks like others are having the same problem: “Incoming Email stuck in Drop folder after SP/Hotfix installation”