Adding some notes about diagnosis items to be implemented

data/hooks/diagnosis/12-dnsrecords.py

@@ -31,6 +31,8 @@ class DNSRecordsDiagnoser(Diagnoser):
             for report in self.check_domain(domain, domain == main_domain):
                 yield report
 
+        # FIXME : somewhere, should implement a check for reverse DNS ...
+
     def check_domain(self, domain, is_main_domain):
 
         expected_configuration = _build_dns_conf(domain)

data/hooks/diagnosis/18-mail.py

@@ -0,0 +1,28 @@
+#!/usr/bin/env python
+
+import os
+
+from yunohost.diagnosis import Diagnoser
+
+
+class MailDiagnoser(Diagnoser):
+
+    id_ = os.path.splitext(os.path.basename(__file__))[0].split("-")[1]
+    cache_duration = 3600
+    dependencies = ["ip"]
+
+    def run(self):
+
+        return  # TODO / FIXME TO BE IMPLEMETED in the future ...
+
+        # Mail blacklist using dig requests (c.f. ljf's code)
+
+        # Outgoing port 25 (c.f. code in monitor.py, a simple 'nc -zv yunohost.org 25' IIRC)
+
+        # SMTP reachability (c.f. check-smtp to be implemented on yunohost's remote diagnoser)
+
+        # ideally, SPF / DMARC / DKIM validation ... (c.f. https://github.com/alexAubin/yunoScripts/blob/master/yunoDKIM.py possibly though that looks horrible)
+
+
+def main(args, env, loggers):
+    return MailDiagnoser(args, env, loggers).diagnose()