This only really applies to Exchange environments afaik.
If you haven't had anything reported yet, It may pay check your external meetings and the like. I am finding 50% of our clients are getting them an hour out because someones exchange server needs to be patched again.
Oh, and blackberries, oh Lordy, someone forgot to patch our BES server (rebuilt 5months ago)
If you need me to send you a meeting request to test, send me a pm,
Cheers
attached an example of whats happening:
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