entypes can't send email to external domains
When migrating the backups on entypes, I added set -x to the backup script, which should output every command to stderr, and that should be emailed to us when it runs from cron. However we didn't get any cron email from it.
It turns out entypes isn't configured to send outgoing email:
This message was created automatically by mail delivery software.
A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:
sysadmin-systems@kde.org
Mailing to remote domains not supported