diff --git a/backend/.env b/backend/.env
index 748b5d6..e10d4f2 100644
--- a/backend/.env
+++ b/backend/.env
@@ -10,6 +10,7 @@ APP_KEYS=kTnz9QXBrfZMQ8KD,bm9ewUW2Wt2YugXW
 
 SMTP_HOST=localhost
 SMTP_PORT=1025
+SMTP_TLS=0
 
 DATABASE_HOST=localhost
 DATABASE_PORT=5432
diff --git a/docker/roodjongeren_prod/.env b/docker/roodjongeren_prod/.env
index abf349d..24a9b0f 100644
--- a/docker/roodjongeren_prod/.env
+++ b/docker/roodjongeren_prod/.env
@@ -12,6 +12,7 @@ STRAPI_SMTP_HOST=mail.zxcs.nl
 STRAPI_SMTP_PORT=465
 STRAPI_SMTP_USERNAME=test@roodjongeren.nl
 STRAPI_SMTP_PASSWORD=test1234
+STRAPI_SMTP_TLS=1
 
 DATABASE_HOST=postgres
 DATABASE_PORT=5432
diff --git a/docker/roodjongeren_prod/docker-compose.yml b/docker/roodjongeren_prod/docker-compose.yml
index 86e22d8..1ac86d9 100644
--- a/docker/roodjongeren_prod/docker-compose.yml
+++ b/docker/roodjongeren_prod/docker-compose.yml
@@ -42,6 +42,7 @@ services:
       - SMTP_PORT=$STRAPI_SMTP_PORT
       - SMTP_USERNAME=$STRAPI_SMTP_USERNAME
       - SMTP_PASSWORD=$STRAPI_SMTP_PASSWORD
+      - SMTP_TLS=$STRAPI_SMTP_TLS
       - DATABASE_HOST=$DATABASE_HOST
       - DATABASE_PORT=$DATABASE_PORT
       - DATABASE_NAME=$DATABASE_NAME
@@ -107,4 +108,4 @@ volumes:
     driver: local
   umami_postgres_volume:
     name: umami_postgres_volume
-    driver: local
\ No newline at end of file
+    driver: local