added some missing env var for Swiftmailer

recipes/symfony/swiftmailer-bundle/etc/packages/swiftmailer.yaml

@@ -1,6 +1,10 @@
 swiftmailer:
+    url: "%env(MAILER_URL)%"
     transport: "%env(MAILER_TRANSPORT)%"
     host: "%env(MAILER_HOST)%"
+    port: "%env(MAILER_PORT)%"
+    encryption: "%env(MAILER_ENCRYPTION)%"
+    auth_mode: "%env(MAILER_AUTH_MODE)%"
     username: "%env(MAILER_USER)%"
     password: "%env(MAILER_PASSWORD)%"
     spool: { type: "memory" }

recipes/symfony/swiftmailer-bundle/manifest.json

@@ -6,8 +6,12 @@
         "etc/": "%ETC_DIR%/"
     },
     "env": {
+        "MAILER_URL": "",
         "MAILER_TRANSPORT": "smtp",
         "MAILER_HOST": "localhost",
+        "MAILER_PORT": "25",
+        "MAILER_ENCRYPTION": "",
+        "MAILER_AUTH_MODE": "",
         "MAILER_USERNAME": "",
         "MAILER_PASSWORD": ""
     }