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If you just upgraded BES to 5.0 and the Domino server hosting it is version 8.0 to 8.0.2 and you experience message + calendar items rediection delays, then KB18171 will be applicable to you.

This issue impacts BlackBerry smartphone users whose mail file path in the operating system's folder structure has a different case than the mail file path specified in the person document. This issue is only exposed to IBM Lotus Domino R8 as a result of a new API, NSFGetDBChanges(), which is intended to be more efficient in gathering mail file changes and reduce CPU and memory use. IBM and Research In Motion® are jointly working together to address this issue.

For example,
- Person document, mail file = mail\MYMAILFILENAME.NSF
- OS filename = mail\mymailfilename.nsf

You should not have any problems if you are using the following software:

• IBM Lotus Domino mail server versions 8.5, 7.0, 6.0 (issue only exists in Domino 8.0.0 to 8.0.2 servers)
• BlackBerry Enterprise Server version 4.0 or 4.1 for IBM Lotus Domino
• IBM Lotus Domino on the BlackBerry Enterprise Server version 6.0 or 7.0

Resolution

Upgrade the BlackBerry Enterprise Server version 5.0 MR1 for IBM Lotus Domino.

Workaround

You can perform one of the following workarounds:

1. Make sure that the mail file path for BlackBerry smartphone users in the operating system is the same as the mail file path for those BlackBerry smartphone users specified in the person document.

2. In HKEY_LOCAL_MACHINE\SOFTWARE\Research In Motion\BlackBerry Enterprise Server\Agents, change the DWORD value PollByMailServer to 0.

Additional Information

For more information on this issue from an IBM Lotus Domino perspective, please contact IBM and reference SPR #PLOR75FK3G.