From address ignored in Mail Server setup

Summary

Email notifications come from the address of the user used for connecting to the mail server rather than the address specified in the "From Address" field

Environment

Confluence

Steps to Reproduce

1. Change "From address" to "noreply@example.com"
2. Trigger a notification

Expected Results

Notification email will be from noreply@example.com

Actual Results

The email comes "from" the same address as the user being used in the Mail server setup in the "username" field.

Workaround

There is no workaround at this time.