I've been running amavisd-new for ~10 years (it runs spamassassing and clamav) and have been DKIM signing with it the whole time. Never had the need to switch t

I've been running amavisd-new for ~10 years (it runs spamassassing and clamav) and have been DKIM signing with it the whole time. Never had the need to switch to rspamd. You can also sign emails with OpenDKIM.