While trying to send email from the OneClick console, the customer is seeing the following error:
SPC-OCC:10266: The web server returned error:
OneClick Web Server runtime debug showed the following exception in the stdout.log file:
Mar 02, 2021 13:40:04.315 - com.sun.mail.util.
nested exception is:
java.net.ConnectException: Connection refused (Connection refused)
The email was being blocked by a firewall.
Release : 10.3
Component : Spectrum Core / SpectroSERVER
Remove the firewall rule blocking communication to the mailhost.