When trying to send reports via email, the following error is encountered.
The error message is reporting that CABI "couldn't connect to host, port: mail.example.com, 25". mail.example.com is not a valid SMTP server
The "mail.example.com" host is one of several default settings that must be changed in order to send email. Therefore, CABI server needs configured to send email via SMTP to a valid server.
The documentation provides the steps to configure the SMTP settings:
Configure the SMTP Email Setting for Emailing Scheduled Reports