Nodemailer

What are the SMTP settings?

How do I set it up?

1. 1

   Install Nodemailer

   Add it to your Node.js project (Node 14+).

   Shell

   npm install nodemailer

2. 2

   Create a transport

   Point the transport at smtp.unitpost.com. Use port 587 with secure: false for STARTTLS, or port 465 with secure: true for implicit TLS. The username is always unitpost; the password is your API key.

   JavaScript

   import nodemailer from "nodemailer";
   
   const transporter = nodemailer.createTransport({
     host: "smtp.unitpost.com",
     port: 587,
     secure: false, // STARTTLS
     auth: {
       user: "unitpost",
       pass: process.env.UNITPOST_API_KEY,
     },
   });

3. 3

   Send an email

   The from address must be on a domain you've verified in Unitpost.

   JavaScript

   await transporter.sendMail({
     from: "you@yourdomain.com",
     to: "customer@example.com",
     subject: "Hello from Unitpost",
     html: "<h1>Welcome!</h1><p>Sent via SMTP.</p>",
   });

4. 4

   Verify it in the dashboard

   Open Activity in your Unitpost dashboard — the message appears alongside API sends, with delivery, open, and click status.