I dug through my Known Bugs List database and found the following info in a tutorial record. It's old and I don't know if it is still correct:
It shows text in an ini file should be:
First of all: Thanks.
I already had found your suggestion somewhere, tried it again with no success.
Meanwhile I found this https://developer.mozilla.org/en-US/docs/Mozilla/Command_Line_Options#Syntax_Rules and tried it with
Send Event ["aevt" ; "odoc" ; "thunderbird -compose..."]
To have paragraphs in body, html tags have to be coded as string (e.g. "<p></p><p>Some Text</p>").
Fields and variables can be used.
Hope this helps Thunderbird users that have the same problem (anyway, strange enough or misterious behaviours of Win, someone has no problem getting the desired result (to have addressee and attachment in Thunderbird's new message UI) just using the Send Mail [E-mail client...].
However, this brings up a problem: "my" workaround is valid only for Thunderbird (I suppose) which is actually my preferred client e-mail.
How can I get the name/.exe file of other preferred clients to make this valid for all? Any idea?
Nice weekend to all.