add eml parser to paperless_mail

src/paperless_mail/apps.py

@@ -1,8 +1,15 @@
 from django.apps import AppConfig
 from django.utils.translation import gettext_lazy as _
+from paperless_mail.signals import mail_consumer_declaration
 
 
 class PaperlessMailConfig(AppConfig):
     name = "paperless_mail"
 
     verbose_name = _("Paperless mail")
+
+    def ready(self):
+        from documents.signals import document_consumer_declaration
+
+        document_consumer_declaration.connect(mail_consumer_declaration)
+        AppConfig.ready(self)