fix(notification): ensure outgoing mail is set on comms (#24814)

frappe/email/doctype/notification/notification.py

@@ -282,6 +282,9 @@ def get_context(context):
 				bcc=bcc,
 				communication_type="Automated Message",
 			).get("name")
+			# set the outgoing email account because we did in fact send it via sendmail above
+			comm = frappe.get_doc("Communication", communication)
+			comm.get_outgoing_email_account()
 
 		frappe.sendmail(
 			recipients=recipients,