diff --git a/backend/mailgun/mailgun.js b/backend/mailgun/mailgun.js
index 594b5d4..ce984ce 100644
--- a/backend/mailgun/mailgun.js
+++ b/backend/mailgun/mailgun.js
@@ -1,13 +1,13 @@
 const mailgun = require("mailgun-js");
 const DOMAIN = "sandboxb488ae9cba904e73936d81f35b2ee781.mailgun.org";
 const mg = mailgun({
-	apiKey: "d05c4d067d69c940d3dac93769dd87a2-fe066263-f6136332",
-	domain: DOMAIN
+	apiKey: process.env.MAILGUN_API_KEY,
+	domain: DOMAIN,
 });
 
 const sendInvite = async (newUser, email, familyName, inviteLink) => {
   const data = {
-    from: "Mailgun Sandbox <postmaster@sandboxb488ae9cba904e73936d81f35b2ee781.mailgun.org>",
+    from: `Family BTC Wallet <postmaster@${DOMAIN}`,
     to: email,
     subject: "Welcome to BTC Family!",
     text: 
diff --git a/sample.env b/sample.env
new file mode 100644
index 0000000..3f60363
--- /dev/null
+++ b/sample.env
@@ -0,0 +1,3 @@
+GOOGLE_APPLICATION_CREDENTIALS=
+MAILGUN_API_KEY=
+MAILGUN_DOMAIN=
\ No newline at end of file