Using procmail to set tags

[Robert Horn]

Is it practical (and has anyone documented) using a procmail setup to
set initial tags for messages using notmuch?

I've just started using emacs-notmuch to read mail, and I'm using a
system where I have procmail filters to bin mail by category into
folders.  I can continue this using folder:value for searching, but one
reason notmuch interests me is the potential to do more.

It's practical for me to assign potentially overlapping tags with a more
sophisticated procmail setup.  Notmuch tags enable having multiple tags
on one email.

I don't know enough about the procmail/notmuch process to see just how
to make this happen.  I'm hoping that someone has already done something
similar.

R Horn
rjhorn at alum.mit.edu