[Dovecot] dovecot: disable ssl compression

[Andreas Schulze]

Reindl Harald:

> that attacks are not relevant for email because they
> rely on the way a webbrowser works which is not the
> case for a mail client - you can't trigger XSS and
> Ajax in a MUA

sure, that may be right, but

We manage numerous public available services. And every time we go through our
Qualys reports I have to explain this message from Qualys as not  
relevant/harmless/cannot change.
It takes time to describe this fact again and again to our it-security people.

And there are many other people in the same situation like me...
That's my main intention to ask how to disable ssl compression in dovecot.

Andreas