One key binding

[?ngel]

Hello,

I'm trying to bind a particular action (save or move an email into a
different folder ---it is always the same (~/mail/spam)--- with a
single key combination to no avail. I should be able to use it both,
within the email itself (while reading it and realising it's a spam,
and from the listing of the incoming folder. I would like to use an
easy key combination for it, something like CONTOL-SPACE, CONTROL-v or
so, which is not used for anything else, of course.

Anybody can help me, please?

Thanks and greetings.

--
Saludos,
?ngel