arcsign(1) General Commands Manual arcsign(1) (NAME) arcsign - ARC (stdin) (VERSION) 0.9.2 (DESCRIPTION) arcsign RFC822 ARC-Signature . (USAGE) : arcsign selector domain privatekeyfile srv_id : arcsign (authentication results) authserv-id srv_id ARC . (AUTHORS) arcsign Brandon Long dkimsign Greg Hewgill . Scott Kitterman dkimpy . 2019-04-14 arcsign(1)