Hi,
I just searched this forum and didn’t find a post where someone asks for mail templates, so I’m gonna do it:
Me and a lot of people I know need reply templates. Exactly what has been asked for here: Message/reply templates · Issue #6360 · nextcloud/mail · GitHub
Roundcube and a lot of other mail clients have it.
If you want this too, give the github issue a 
– even better, if someone has the skills to code it?!
Yours
alexanderdd