Enhancement: option to stop processing further mail rules (#12053)

src/paperless_mail/models.py

@@ -301,6 +301,14 @@ class MailRule(document_models.ModelWithOwner):
         default=True,
     )
 
+    stop_processing = models.BooleanField(
+        _("Stop processing further rules"),
+        default=False,
+        help_text=_(
+            "If True, no further rules will be processed after this one if any document is queued.",
+        ),
+    )
+
     def __str__(self):
         return f"{self.account.name}.{self.name}"