I'm trying to get started with e-mail templates, etc. and I want to test these things in my sandbox org rather than interfere with any production data by mistake.
If I go onto a Lead record in the production org, I see the "Email" tab under "Activity":
But if I do the same on the sandbox org, it's not there:
I've compared every setting under Setup > Administration > Email between the production and sandbox orgs and all of the settings are the same in both. I paid special attention to Deliverability since it sounded like aspects of this could throw a spanner in the works, but this is all the same too (other than Access Level which I have already changed to All email):
I'm logged in as the administrator user, so I don't see why permissions would factor into this, either.
I saw a post on the Salesforce boards that suggested e-mail isn't enabled for the sandbox org, but I can't find where I can enable it. Any insight into my situation would be very much appreciated.