diff --git a/ennstatus/root/functions.py b/ennstatus/root/functions.py
--- a/ennstatus/root/functions.py
+++ b/ennstatus/root/functions.py
@@ -29,11 +29,13 @@ def send_membership_mail(form):
                 current_app.logger.debug('Before encryption')
                 current_app.logger.debug(body)
                 if current_app.extensions['gnupg']:
-                    body = str(current_app.extensions['gnupg'].encrypt(body, recipient,
-                               always_trust=True))
+                    encrypted_body = str(current_app.extensions['gnupg'].encrypt(body, recipient,
+                                         always_trust=True))
+                else:
+                    encrypted_body = None
                 current_app.logger.debug('After encryption')
                 current_app.logger.debug(body)
-                msg.body = body
+                msg.body = encrypted_body if encrypted_body else body
                 conn.send(msg)
         flash('Application successfully sended!', 'success')
     except KeyError: