Can unattended-upgrades send a test email?

I've been tearing my hair out trying to figure out why running unattended-upgrade wouldn't result in an email in my inbox, only for one to turn up this morning. Is there a way to help debugging a new config by forcing unattended-upgrade to send an email whenever it runs? I don't get any lines about email at all in /var/log/unattended-upgrades/unattended-upgrades.log I'm running Debian 10.