# dkim_dns_close()

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SYNOPSIS |
    #include <dkim.h>
    int dkim_dns_close(
    	DKIM_LIB *libopendkim)
    );
Shuts down the DNS resolver in use by the library. This in turn calls either the compiled-in default or the replacement provided by a call to `dkim_dns_set_close()`. This is automatically called by `dkim_close()`.
DESCRIPTION |
Called When | `dkim_dns_close()` can be called at any time.
ARGUMENTS |
Argument | Description
--- | ---
libopendkim | The library instantiation handle, returned by `dkim_init()`.
RETURN VALUES | `DKIM_DNS_SUCCESS` -- successful operation `DKIM_DNS_ERROR` -- an error occurred
NOTES | None.

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