2. Use the following global settings to configure DMARC:
-Optional:
+Required:
dmarc_tld_file Defines the location of a text file of valid
top level domains the opendmarc library uses
during domain parsing. Maintained by Mozilla,
the most current version can be downloaded
from a link at http://publicsuffix.org/list/.
- If unset, "/etc/exim/opendmarc.tlds" (hardcoded)
- is used.
Optional:
dmarc_history_file Defines the location of a file to log results
An option on the smtp transport, which constructs and prepends to the message
an ARC set of headers. The textually-first Authentication-Results: header
is used as a basis (you must have added one on entry to the ADMD).
+Expanded; if unset, empty or forced-failure then no signing is done.