Remove the automatic task content "Created with APPA Mundi Tasks"
Every task created in the app gets this automatic "signature" at the end of the content. It's very annoying when I look at them in Outlook. Are you trying to advertise your own app to me? I already have it.
The footer message is only added in the trial version of the app. If it still says APPA Mundi Tasks then it must be a very old version of the app.
Actually it was the latest version of the App, but a German version, hence the translation was probably out of date. Anyway, it was very useful to know that purchasing would get rid of this, you could list this on your "why to purchase" page. I now bought it.