NAME - computes ARC signatures for an email message

SYNOPSIS [options] < original_email.txt
      --wrap --help
    to see a full description of the various options



Chain value. "ar" means pick it up from Authentication-Results header.


File containing private key, without BEGIN or END lines.


Signing domain


Authentication-Results server domain, defaults to signing domain.


Outputs the canonicalized message to the specified file, in addition to computing the DKIM signature. This is helpful for debugging canonicalization methods.


Jason Long, <>

John Levine, <>


Copyright (C) 2006-2007 by Messiah College Copyright 2017 by Standcore LLC

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.6 or, at your option, any later version of Perl 5 you may have available.