Set min DKIM size to 1024 bit

Author: technicalguru

README.md

@@ -15,7 +15,7 @@ Related images:
 # Tags
 The following versions are available from DockerHub. The image tag matches the Amavisd-new version.
 
-* [2.13.0.2, 2.13.0, 2.13, 2, latest](https://hub.docker.com/repository/docker/technicalguru/mailserver-amavis/tree/v2.13.0.2) - [Dockerfile](https://github.com/technicalguru/docker-mailserver-amavis/blob/2.13.0.2/Dockerfile)
+* [2.13.0.3, 2.13.0, 2.13, 2, latest](https://hub.docker.com/repository/docker/technicalguru/mailserver-amavis/tree/v2.13.0.3) - [Dockerfile](https://github.com/technicalguru/docker-mailserver-amavis/blob/2.13.0.3/Dockerfile)
 
 # Features
 * [Amavis Checker](https://www.amavis.org/) v2.13.0

etc/spamassassin/local.cf

@@ -121,6 +121,7 @@ ifplugin Mail::SpamAssassin::Plugin::DMARC
   ifplugin Mail::SpamAssassin::Plugin::DKIM
     ifplugin Mail::SpamAssassin::Plugin::SPF
       dmarc_save_reports 0
+      dkim_minimum_key_bits 1024
 
       header DMARC_REJECT eval:check_dmarc_reject()
       priority DMARC_REJECT 500