Users to send HTML email from PS via copy pasting the context from Outlook / Word

Dear All,

There is an urgent requirement where business users require an interface, which allows them to copy paste the email content via outlook/MS Word and paste it into PS.
From PS, the html email should be sent to the target recipients', in the similar format.

Please advise how this can be accomplished. What suitable component can be utilized to copy paste the html email content and PS can send in a similar manner.

The ask is for the business users to send emails on their own from the system, without relying on IT, for every time formulating html emails and running via AE.