Email notifications are not being sent while properly defined at the Uproc Level when having defined a "Customized email header"
In the universe.log, the following error appears when the email is supposed to be sent:
|ERROR|X|IO |pid=p.t| email_notification_build_ | o_io_email_subj_custom returned -1.
Release : 6.x
Component : DOLLAR UNIVERSE
In the node settings section SMTP check if the values for the variables:
Customize email header
Known variables (such as UPR, SES, MU) should be introduced as !VARIABLE!
Fix the value of the Customize email header, on the example above, replace !UPR by !UPR!