When you're editing the appearance of e-mails, you can't preview the template. Can this please be added?

Good suggestion, I'll add it to our internal tracker for further consideration. 

 

It would be nice to be able to send a test version of all the generated mails the system can produce since the templates are a mess of inlined styles etc. (I know they have to be to make HTML emails work).

It is rather difficult to get them styled properly without a template breaking the wrapper and vice versa