really fix shutdown in #40

active_bots/mailbot.py

@@ -65,7 +65,7 @@ def make_report(msg, user):
                 for p in part:
                     if isinstance(p, str):
                         text.append(p)
-                    if p.get_content_type() == "text":
+                    elif p.get_content_type() == "text":
                         text.append(part.get_payload())
                     else:
                         logger.error("unknown MIMEtype: " +