Alan Schmitt <alan.schmitt@polytechnique.org> writes:

> Hello,
>
> I'm trying to configure notmuch such that it never searches for files in
> my Trash folder. I have found in the configuration how to exclude some
> tags from every search, but not how to exclude a folder.
>
> Is it possible?
>

One thing you can do is mark the trash folder to be ignored by 
notmuch new. See the new.ignore setting in man notmuch-config(1).

d