I've installed the Self-Service Provisioning application (APEX) on my mulitenant database. It's working fine but no mails are being sent (when new users are granted access, their password is emailed to them; that never happens).
I did configure the email settings (SMTP host, port, ...), I am quire sure this is correct but the application never sends any mails. It does not even try.
The "Email Send Log" page of the application is always empty. I am not running in demonstration mode.
What could be wrong? I am able to ping the email server from the host where SSP is running.
See https://www.oracle.com/technetwork/database/multitenant/downloads/multitenant-pdbss-2016324.html for more info about Oracle SSP.