Purchase Order approval email needs to be sent from a custom email address to the internal approvers

Summary:

The business requirement is that, whenever an approval email is sent to the internal approvers, the from email ID should be set as a custom email ID rather than the automatically generated workflow email ID. Is there a step-by-step guide as to which setups are to be done (profile options, BPM workflow, Sender Policy Framework, DKIM).

Content (please ensure you mask any confidential information):

The business requirement is that, whenever an approval email is sent to the internal approvers, the from email ID should be set as a custom email ID rather than the automatically generated workflow email ID. Is there a step-by-step guide as to which setups are to be done (profile options, BPM workflow, Sender Policy Framework, DKIM).