Since gh-102988, email.utils.getaddresses() return [('', '')] for invalid email
addresses which includes empty string if the header is set with an empty list.
Closes #13649
######################### Notification Email Module ######################### The *Notification Email Module* allows you to define email templates that will be sent to a list of recipients when a trigger is fired on a record event. .. toctree:: :maxdepth: 2 configuration design releases