diff --git a/symfony/amazon-mailer/4.4/manifest.json b/symfony/amazon-mailer/4.4/manifest.json
new file mode 100644
index 00000000..d3b15d03
--- /dev/null
+++ b/symfony/amazon-mailer/4.4/manifest.json
@@ -0,0 +1,6 @@
+{
+    "env": {
+        "#1": "MAILER_DSN=ses://ACCESS_KEY:SECRET_KEY@default",
+        "#2": "MAILER_DSN=ses+smtp://ACCESS_KEY:SECRET_KEY@default"
+    }
+}
diff --git a/symfony/google-mailer/4.4/manifest.json b/symfony/google-mailer/4.4/manifest.json
new file mode 100644
index 00000000..5dcece2f
--- /dev/null
+++ b/symfony/google-mailer/4.4/manifest.json
@@ -0,0 +1,6 @@
+{
+    "env": {
+        "#1": "Gmail SHOULD NOT be used on production, use it in development only.",
+        "#2": "MAILER_DSN=gmail://USERNAME:PASSWORD@default"
+    }
+}
diff --git a/symfony/mailchimp-mailer/4.4/manifest.json b/symfony/mailchimp-mailer/4.4/manifest.json
new file mode 100644
index 00000000..b72bede9
--- /dev/null
+++ b/symfony/mailchimp-mailer/4.4/manifest.json
@@ -0,0 +1,6 @@
+{
+    "env": {
+        "#1": "MAILER_DSN=mandrill://KEY@default",
+        "#2": "MAILER_DSN=mandrill+smtp://USERNAME:PASSWORD@default"
+    }
+}
diff --git a/symfony/mailgun-mailer/4.4/manifest.json b/symfony/mailgun-mailer/4.4/manifest.json
new file mode 100644
index 00000000..a80fd18f
--- /dev/null
+++ b/symfony/mailgun-mailer/4.4/manifest.json
@@ -0,0 +1,6 @@
+{
+    "env": {
+        "#1": "MAILER_DSN=mailgun://KEY:DOMAIN@default",
+        "#2": "MAILER_DSN=mailgun+smtp://USERNAME:PASSWORD@default"
+    }
+}
diff --git a/symfony/postmark-mailer/4.4/manifest.json b/symfony/postmark-mailer/4.4/manifest.json
new file mode 100644
index 00000000..e7d798ec
--- /dev/null
+++ b/symfony/postmark-mailer/4.4/manifest.json
@@ -0,0 +1,5 @@
+{
+    "env": {
+        "#1": "MAILER_DSN=postmark://ID@default"
+    }
+}
diff --git a/symfony/sendgrid-mailer/4.4/manifest.json b/symfony/sendgrid-mailer/4.4/manifest.json
new file mode 100644
index 00000000..bab65855
--- /dev/null
+++ b/symfony/sendgrid-mailer/4.4/manifest.json
@@ -0,0 +1,5 @@
+{
+    "env": {
+        "#1": "MAILER_DSN=sendgrid://KEY@default"
+    }
+}