group @code{foo.bar}. (You can change the suffix to be used instead
of @code{.spool}.) Setting
@code{nnmail-scan-directory-mail-source-once} to non-nil forces Gnus
-to scan the mail source only once. This is particularly useful if you
+to scan the mail source only once. This is particularly useful if you
want to scan mail groups at a specified level.
+There is also the variable @code{nnmail-resplit-incoming}, if you set
+that to a non-nil value, then the normal splitting process is applied
+to all the files from the directory.
+
Keywords:
@table @code