$MAIL_HOST|bk)
local_mx=mail.iankelling.org
# ||: is to allow for temporary connection issues.
- rsync ${opt[@]} -ogtL --chown=root:Debian-exim --chmod=640 \
+ rsync "${opt[@]}" -ogtL --chown=root:Debian-exim --chmod=640 \
root@li.iankelling.org:/etc/letsencrypt/live/mail.iankelling.org/{fullchain.pem,privkey.pem} /etc/exim4 ||:
if ! openssl x509 -checkend $(( 60 * 60 * 24 * 3 )) -noout -in /etc/exim4/fullchain.pem; then
echo "$0: error!: cert rsync failed and it will expire in less than 3 days"