On 2021-08-13 06:25, Ken N wrote:
Am I right?
no, SRS is not part of dmarcpobox have there own spf, and dkim, but pobox should not use srs or add dkim signing, so only arc sealing on pobox is needed to not break dmarc
if pobox on the other hand originating emails thay should dkim sign it, otherwize not
note there is now cve on libspf2 with in most cases is used by srs implementions
no one should use srs or sender-id anymore, both should be depricated
