use a more recent algorithm for dkim signing

Julien LepillerWed Mar 11 17:06:12+0100 2020

cfcc6bc

system-configuration/systems
namelast commitdate
ene.scmUse iptables service on ene tooThu Feb 20 16:46:52+0100 2020
hermes.scmUpdate website configurationThu Feb 20 16:47:44+0100 2020
sybil.scmAdd libvirt to sybilSat Oct 12 11:41:02+0200 2019
tachikoma.scmReinstall tachikomaSun Dec 08 13:47:55+0100 2019