| DESCRIPTION | 
| Purpose | A dkim_atps_t is a result from an Authorized Third-Party Signers
    (ATPS) check. |  
| Possible Values | 
 DKIM_ATPS_UNKNOWN -- an ATPS test has not been performed or a
                                   result could not be determined
 DKIM_ATPS_FOUND -- the sending domain has authorized the signing
                                 domain to sign its mail
 DKIM_ATPS_NOTFOUND -- the sending domain has not authorized the
                                    signing domain to sign its mail
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