diff --git a/conf/app.src b/conf/app.src
index 4993d22..682bb68 100644
--- a/conf/app.src
+++ b/conf/app.src
@@ -1,5 +1,5 @@
-SOURCE_URL=https://github.com/tracim/tracim/archive/refs/tags/release_04.01.03.tar.gz
-SOURCE_SUM=317c427f35f85e2996499b466976b800cd158193f7261a44b0003198364c698b
+SOURCE_URL=https://codeload.github.com/yalh76/tracim/tar.gz/2d83f48e43e0ce029368202151cd98d6b8dc9c81
+SOURCE_SUM=9709dc0139b3d267a153e2cd1e9e3dc18836f5597bd6bc6a4c7060966e3ef86e
 SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=tar.gz
 SOURCE_IN_SUBDIR=true
diff --git a/conf/development.ini.sample b/conf/development.ini.sample
index 1a614b4..da697d5 100644
--- a/conf/development.ini.sample
+++ b/conf/development.ini.sample
@@ -521,7 +521,7 @@ webdav.ui.enabled = True
 ####
 
 ## send some notification when user make specific action in Tracim
-; email.notification.activated = True
+email.notification.activated = True
 ## you can enable or disable if invited user to space will be notified
 ## on this space by default.
 ## NB: new users will not being notified until they login to Tracim a first time
@@ -542,10 +542,16 @@ email.notification.smtp.port = 25
 # email.notification.smtp.user = your_smtp_user
 # email.notification.smtp.password = your_smtp_password
 
-# enable implicit ssl if you are using implicit smtp with encryption port like 465
-# by default, Tracim will try to use explicit smtp encryption using starttls, and unencrypted
-# connection as fallback.
-; email.notification.smtp.use_implicit_ssl = False
+# Enable/disable authentification.
+# False mean anonymous smtp connection, it skip user/password login step.
+email.notification.smtp.authentication = False
+
+# SMTP encryption method valid values are:
+# - default: use smtp encryption using starttls, and unencrypted connection as fallback.
+# - SMTPS: use encrypted connection directly on port like 465
+# - unsecure: don't use encryption, use it with caution !
+# default value: default
+email.notification.smtp.encryption = unsecure
 
 ### Headers ###
 ; email.notification.from.default_label = Tracim Notifications