After some struggles, I managed to install Graylog 3.0.x on Ubuntu 19.04 AND Report Generation with ChromeDriver works well straight out of the box. This is something I never managed with CentOS 6.3 (but this is a different story).
I have set a schedule to email the report daily. And the email does go through as expected. So my goal is achieved.
However, in logs, I notice the below, which is strange because the emails do get sent via relay. Is this the correct platform to provide this kind of feedback?
Caused by: org.apache.commons.mail.EmailException: javax.mail.internet.AddressException: Illegal address in string ``’’