nnimap: BAD Missing '"'

[Jens K. Loewe]

Now I have a weird issue:

I can't add IMAP servers to my Gnus config. When I do, I get this error
when trying to connect to the servers:

> BAD Missing '"'

However, there is no missing '"'.

My userdata (with placeholders):
https://www.dropbox.com/s/nbe6bv7sf0qxsfa/.gnus.userdata.el

My general .gnus config:
https://github.com/dertuxmalwieder/My-Emacs-config/blob/master/.gnus.el

My .authinfo:
> machine forenkrams login <mail> password <password>
> machine zeug login <mail> password <password>
> (etc.)

Any clues about what's wrong?


-- 
I could contain traces of nuts.