Unable to email Spectrum alarms in OneClick

Products

• Network Observability
• Spectrum

Issue/Introduction

I am unable to email Spectrum alarms in the OneClick.

This is happening both using Java client and WebApp.

There are no errors in the OneClick console or catalina.out\stdout.log but nothing happens when the email is sent.

I verified that I can manually send emails from the OneClick server at the OS Level.

Environment

Spectrum 23.3.x, 24.3.x

Cause

Blank value for SMTP Server Domain field.

Resolution

In OneClick > Administration > Email Configuration: