24D - 24D - Email "Interactions" train stop in the "Create contract Request" feature

Please advise how does the email option work. Scenario is below.

Reviewer sends an email to Requester and Requester receives email and also the same is captured in the Interactions train stop.

Now, do requester have to come to the Interactions tab to reply or send out a reply from the email itself and if yes, will the conversation sent by Requester to Reviewer over the email gets captured in the Interactions train stop? Please advise.