diff --git a/backend/.env.dist b/backend/.env.dist
index f9e0504d8..9844d8c4a 100644
--- a/backend/.env.dist
+++ b/backend/.env.dist
@@ -44,7 +44,6 @@ EMAIL_TEST_MODUS=false
 EMAIL_TEST_RECEIVER=stage1@gradido.net
 EMAIL_USERNAME=gradido_email
 EMAIL_SENDER=info@gradido.net
-EMAIL_SENDER_GRADIDOS_RECEIVED=noreply@gradido.net
 EMAIL_PASSWORD=xxx
 EMAIL_SMTP_URL=gmail.com
 EMAIL_SMTP_PORT=587
diff --git a/backend/.env.template b/backend/.env.template
index 2107b8599..e79122368 100644
--- a/backend/.env.template
+++ b/backend/.env.template
@@ -46,7 +46,6 @@ EMAIL_TEST_MODUS=$EMAIL_TEST_MODUS
 EMAIL_TEST_RECEIVER=$EMAIL_TEST_RECEIVER
 EMAIL_USERNAME=$EMAIL_USERNAME
 EMAIL_SENDER=$EMAIL_SENDER
-EMAIL_SENDER_GRADIDOS_RECEIVED=$EMAIL_SENDER_GRADIDOS_RECEIVED
 EMAIL_PASSWORD=$EMAIL_PASSWORD
 EMAIL_SMTP_URL=$EMAIL_SMTP_URL
 EMAIL_SMTP_PORT=587
diff --git a/backend/src/config/index.ts b/backend/src/config/index.ts
index c49f6c8c2..25e901491 100644
--- a/backend/src/config/index.ts
+++ b/backend/src/config/index.ts
@@ -19,7 +19,7 @@ const constants = {
   LOG_LEVEL: process.env.LOG_LEVEL ?? 'info',
   CONFIG_VERSION: {
     DEFAULT: 'DEFAULT',
-    EXPECTED: 'v21.2023-10-29',
+    EXPECTED: 'v20.2023-09-19',
     CURRENT: '',
   },
 }