New comment by leahneukirchen on mblaze repository

https://github.com/leahneukirchen/mblaze/issues/191#issuecomment-721672761

Comment:
Hm, trying to reproduce this I get:

```
MIME-Version: 1.0
Content-Type: multipart/mixed; boundary="----_=_6cc04cbb64e51ce3738d8d8a_=_"

This is a multipart message in MIME format.

------_=_6cc04cbb64e51ce3738d8d8a_=_
mmime: error attaching file '/etc/issuez': No such file or directory

------_=_6cc04cbb64e51ce3738d8d8a_=_--
```

But status is 0, so this should be fixed and then reported (or even made fatal).