# dkim_close()

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SYNOPSIS |
    #include <dkim.h>
    void dkim_close(
    	DKIM_LIB *lib
    );
Shut down an instantiation of the DKIM service.
DESCRIPTION |
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()`.
ARGUMENTS |
Argument | Description
--- | ---
lib | The library handle to be shut down, previously returned from a call to `dkim_init()`.

NOTES

- When this function returns, the data referenced by `lib` is no longer usable.

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