<A target="_blank" href="http://blog.macian.net/2010/10/insufficient-memorywhat-pain.html">Andy Donaldson had filed multiple PMRs about a memory issue</A> that resulted in mail files being corrupted on his Domino 8.5.1 server. The files could be recovered on his 8.5.2 test server, but... Then someone remembered seeing the same error elsewhere.