spoolfile and procmail

[Dumas Patrice]

Hi,
Maybe you will find this question a bit stupid, but I have a conceptual
problem.
My setting is fetchmail->procmail->mail folders. Then I use mutt to read the
mail folders.
Is there a need for a spool folder in this setting ? Am I doing something not
regular ?

Sure I can live without the answer to my question but I would like to know if
there is a standard setting which is not an embedded pop-client nor a delivery 
in /var/spool/...

Pat