Apple Mail Plugin Message Content Body

Hello,

i am in the process of developing a Plugin for Apple Mail.
I spend lots of time figuring out how to hook into the undocumented api. But I cant figure out how to access the content of a message.
I can access and manipulate the header alright (from, to, subject)-- but I dont know how to put some text into the actual email message. (I want to place a predefined greeting, like "hello mr. mail").
Any help is much appreciated. I buy you a beer(or coffee, juice, up to you) if you can help me here.
Thanks a lot in advance
Best regards
Tommy

Unfortunately, the Apple Developer Forums Usage Guide specifically requires that we only discuss "Only discuss public, supported APIs." The Apple Mail Plug-in API is a strange one. No public API exists, but there is a setting in Mail preferences for plug-ins.

But if you don't get any replies to your question here, this might be the reason.
Apple Mail Plugin Message Content Body
 
 
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