Yes there was a MR to resolve this issue, it was 5.0.0 MR1. But you also need the IBM Domino Patch for SPR #PLOR75FK3G.
It affects Domino Servers running 8.0.0 through to 8.5 where the mail file in the person document does not match the case of the mail file (including path) at the OS. In my case the person documents had mail\filename.nsf but at the OS level the mail folder had a capital M.
I have corrected the case in the person documents and also put missing .nsf extensions on where they were not listed in the person document. I will see if that fixes the problem.
If not then there is a registry hack for the BlackBerry Enterprise Server to stop it using the new more efficient Domino 8 API NSFGetDBChanges().
Also Domino 8.0.2 FP2 or newer servers have the fix in them. When I can get some downtime I will upgrade the Domino servers.
See IBM TechNote 1390932 http://www-01.ibm.com/support/docvie...rss=ct463lotus
and RIM KB18171 http://www.blackberry.com/btsc/searc...rnalId=KB18171