2015-01-27 2025-04-04 Specification Required Scott Kitterman adkim active DKIM Identifier Alignment mode aspf active SPF Identifier Alignment mode fo active Failure reporting options np active Requested Domain Owner Assessment Policy for non-existent subdomains p active Requested Domain Owner Assessment Policy pct historic Sampling rate psd active Indicates whether the DMARC Policy Record is published by a Public Suffix Domain rf historic Failure reporting format(s) ri historic Aggregate Reporting interval rua active Reporting URI(s) for DMARC aggregate feedback reports ruf active Reporting URI(s) for message-specific DMARC failure reports sp active Requested Domain Owner Assessment Policy for subdomains t active DMARC policy test mode v active DMARC specification version Specification Required Scott Kitterman afrf active Authentication Failure Reporting Format (see )