Sender email address not appearing in forwarded email

As the title says – when a visitor sends in a message via the website using a contact form and it gets forwarded to the admin user the senders name appears in the ‘from’ field but accompanied by the ‘admins email address’ and NOT the ‘senders email address’ so there is no way of replying unless you go into the CMS and find the address in the Contact DB.

Feels like the contact form may be set up wrong but as the web builder is not working on the website anymore I’m (as a WP novice) trying to work out how to fix…if anyone can help or has faced this issue before it would be really appreciated….thanks