New comment by rakoo on mblaze repository

https://github.com/leahneukirchen/mblaze/pull/260#issuecomment-2176846247

Comment:
Oh ok, so the argument to `mcom` should be a file, not a string

The problem I have is probably in `mmailto` then, which passes the content of the `body` arg as a string. I'll do the necessary changes over there