Be gentle with me please, love the email client thunderbird, I am looking for an add-on that will let me automatically insert a sequential Ref No. (Tracking ID) into the subject or into the main body of an email so that i can keep control of my emails, i could probably do it manually, but thats not what i got a computer for lol. Looking for something like this software for outlook, but i dont need all the bells and whistles, just the tracking ID element. https://www.outlook-apps.com/product/bells-whistles-for-outlook/ heres a screen shot of the options in bells and whistles...