Error "the revision level is unknown"

Hi,
I am using a meta directory to create and populate new exchange users. And i
have the requirement of associating it with an account in the external
domain. for this. i am trying to set the msexchmailboxsecuritydescriptor and
msexchmasteraccountsid attributes. hope this is enough to do so. i have a two
way trust between the two domains.

but when the meta directory tries to create this account it gets the above
error. having looked at the microsoft solution for it, it says rebuild the
security descriptor. but i have no idea what it implies.

we hope to go live in some days. any help from your side to debug this would
be highly appreciated.

Thanks,
Mayuresh.
.

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