dkimsign - Script for DKIM signing messages on stdin

       The original  version  of  dkimsign  was  written  by  Greg  Hewgill  <greg@hewgill.com>.   It  has  been
       substantially rewritten by Scott Kitterman <scott@kitterman.com>.

       This  man-page  was created by Scott Kitterman <scott@kitterman.com> and is licensed under the same terms
       as dkimpy.

                                                   2018-02-05                                        dkimsign(1)

       dkimsign  is  a  filter  that  reads  an RFC822 message on standard input, and writes the same message on
       standard output with a DKIM-Signature line prepended.

       dkimsign - Script for DKIM signing messages on stdin

       usage: dkimsign.py [-h] [--hcanon {simple,relaxed}]
                          [--bcanon {simple,relaxed}]
                          [--signalg {rsa-sha256,ed25519-sha256,rsa-sha1}]
                          [--identity IDENTITY]
                          selector domain privatekeyfile

       mandatory positional arguments:
         selector
         domain
         privatekeyfile

       optional arguments:
         -h, --help            show this help message and exit
         --hcanon {simple,relaxed}
                               Header canonicalization algorithm: default=relaxed
         --bcanon {simple,relaxed}
                               Body canonicalization algorithm: default=simple
         --signalg {rsa-sha256,ed25519-sha256,rsa-sha1}
                               Signature algorithm: default=rsa-sha256
         --identity IDENTITY   Optional value for i= tag.

       0.7.0