Called When |
dkim_close() is called shutting down the application. It
deallocates all allocated resources having to do with the DKIM library.
It does not deallocate resources associated with any existing
DKIM handles. Those must be cleaned
up first with calls to dkim_free().
Failure to do so will almost certainly cause application failure when
those handles are used later, even if only to pass them to
dkim_free().
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