diff --git a/recipes/symfony/swiftmailer-bundle/etc/packages/swiftmailer.yaml b/recipes/symfony/swiftmailer-bundle/etc/packages/swiftmailer.yaml
index b9dd8772..75c712f0 100644
--- a/recipes/symfony/swiftmailer-bundle/etc/packages/swiftmailer.yaml
+++ b/recipes/symfony/swiftmailer-bundle/etc/packages/swiftmailer.yaml
@@ -3,8 +3,8 @@ swiftmailer:
     transport: "%env(MAILER_TRANSPORT)%"
     host: "%env(MAILER_HOST)%"
     port: "%env(MAILER_PORT)%"
-    encryption: "%env(MAILER_ENCRYPTION)%"
-    auth_mode: "%env(MAILER_AUTH_MODE)%"
+    encryption: null
+    auth_mode: null
     username: "%env(MAILER_USER)%"
     password: "%env(MAILER_PASSWORD)%"
     spool: { type: "memory" }
diff --git a/recipes/symfony/swiftmailer-bundle/manifest.json b/recipes/symfony/swiftmailer-bundle/manifest.json
index ec92ec58..f277775a 100644
--- a/recipes/symfony/swiftmailer-bundle/manifest.json
+++ b/recipes/symfony/swiftmailer-bundle/manifest.json
@@ -10,8 +10,6 @@
         "MAILER_TRANSPORT": "smtp",
         "MAILER_HOST": "localhost",
         "MAILER_PORT": "25",
-        "MAILER_ENCRYPTION": "",
-        "MAILER_AUTH_MODE": "",
         "MAILER_USERNAME": "",
         "MAILER_PASSWORD": ""
     }