during domain parsing. Maintained by Mozilla,
the most current version can be downloaded
from a link at http://publicsuffix.org/list/.
+ See also util/renew-opendmarc-tlds.sh script.
Optional:
dmarc_history_file Defines the location of a file to log results
should try to stick to one ADMD, so pick a primary domain and use that for
AR headers and outbound signing.
+Signing is not compatible with cutthrough delivery; any (before expansion)
+value set for the option will result in cutthrough delivery not being
+used via the transport in question.
+
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