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Note: The next unique identifier value is intended to
provide a means for a client to determine whether any
messages have been delivered to the mailbox since the
previous time it checked this value. It is not intended to
provide any guarantee that any message will have this
unique identifier; a client can only assume that a new
message will have a UID that is greater than or equal to
the next unique identifier value.
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The last phrase should be corrected. Something like this:
.. a client can only assume that a new
message will have a UID that is greater than or equal to
the next unique identifier value reported the last time the client
checked this value.
Sincerely,
Vladimir