Issue Summary

When using the "Send email" action with a custom domain the email address displayed in the "From" field on the rule configuration displays the email address as `automation@<custom-domain>.com` even though the email is actually sent using the `automation@<instance-name>.atlassian.net` email address.

This is reproducible on Data Center: no

Steps to Reproduce

1. Set up a custom domain using this guide: https://support.atlassian.com/organization-administration/docs/add-a-custom-domain/
2. Navigate to "Automation" and attempt to create an automation rule with "Send email" as the action
3. Expand the "More options" section on the "Send email" action configuration

Expected Results

The email address should show the actual email used during the execution of the action, which would be in the format of `automation@<instance-name>.atlassian.net`

Actual Results

The email address uses the custom domain address in the format of `automation@<custom-domain>.com`

Workaround

Currently there is no known workaround for this behavior. A workaround will be added here when available