The following lines in the PRF file were commented out -

code:
[Microsoft Exchange Server]
ServiceName=MSEMS
MDBGUID=5494A1C0297F101BA58708002B2A2517

MailboxName=PT_STRING8,0x6607
;	-- The name of the user's Exchange Server Mailbox

HomeServer=PT_STRING8,0x6608
Once he uncommented these, there were no further issues.

Kent
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