[Dovecot] Are host names a secret?

[Timo Sirainen]

On Fri, 2009-07-17 at 00:12 +0200, Axel Luttgens wrote:
> > With large installations with multiple servers that could allow user  
> > to
> > see e.g. if they're on the same server as someone else they know, or
> > when they get moved to a different servers, etc.. But is this a real
> > issue? Maybe not.
> 
> I tend to agree with the latter.
> First, hiding the info would tend towards security through obscurity.
> Second, it is very likely that the info would anyway be leaked through  
> some other parts of the transport layers.
> Third, one may hope that the security of smtp/imap/pop softwares  
> doesn't depend on the availability of such info. ;-)

It's not really about the security, but more about exposing some
information that maybe the IMAP service provider would have preferred if
you didn't know about.

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