E-Mail Configuration In DT

### Current Behavior

I have provided the correct configuration for my SMTP server in DT but the outgoing mail are failing.


Kindly help

Regards
Manju

### Steps to Reproduce

1.Try to configure email in DT

### Expected Behavior

Should be able to send mail from DT for Notifications?Alerts

### Dependency-Track Version

4.6.x

### Dependency-Track Distribution

Container Image

### Database Server

PostgreSQL

### Database Server Version

10.0

### Browser

Google Chrome

### Checklist

- [X] I have read and understand the [contributing guidelines](https://github.com/DependencyTrack/dependency-track/blob/master/CONTRIBUTING.md#filing-issues)
- [X] I have checked the [existing issues](https://github.com/DependencyTrack/dependency-track/issues) for whether this defect was already reported