We've got a few users here with an annoying problem. Sometimes when they move an e-mail into a newly created folder, after about a minute the e-mails will move back to their mailbox. Once the folder has been established for a while, it will stop happening.

The only pattern I can find between the users is that they have Blackberry devices (although its only 4 out of a total of 30), which may point to some sort of synchronization problem although I've set the mailbox to win on conflicts.

Has anyone experienced this problem and can offer advice on what will fix it?

GW 8.0.2 on Netware 6.5 SP8
Clients running 8.0.2
BES 4.1.7

Many thanks