Using DT with El Capitan / mail plug in

While I sort out a new Mac, I am making the most of my old iMac.

I’m wondering if its possible to install the Mail Plugin as there is no Plugin option under the general tab in Prefs.

What I am after doing is being able to send single emails to DT to be able to keep a record of them. Sure, I can print them > send to DT, just wondered if there was the “proper” way of doing it.

Oh, am using DT 3.8.3

Many thanks
Simon

Unfortunately, you’re running out of date software on a no longer supported OS.

You could try drag and drop of individual emails.