On  2 Oct 2013, Leandro Noferini wrote:

> Ciao a tutti,
>
> I use the debian-snapshot version of emacs
>
> GNU Emacs 24.3.50.1 (i486-pc-linux-gnu, GTK+ Version 3.8.4)
> of 2013-09-29 on prometheus, modified by Debian
>
> and from some days using the gnus inside (Gnus v5.13) trying to send
> a message I get an error message like the subject
>
> 'smtp-server' not defined
>
> What's changed? What I need to do?

apt-get remove flim 

(or maybe apt-get remove apel)

see here
http://lists.gnu.org/archive/html/info-gnus-english/2010-02/msg00077.html