Dear Zoho Support,

I'm encountering an issue with Nodemailer on my live server. While email delivery works flawlessly on my(localhost), it fails to send emails once deployed.

const nodemailer = require("nodemailer");

router.post("/register", (req, res) => {

  const { fname, lname, email, subject, msg } = req.body;

  try {

    let transporter = nodemailer.createTransport({

      host: "smtppro.zoho.in",

      port: 465,

      secure: true,

      auth: {

        user: "info@mydomain.com", // 

        pass: "myAppPassword",     //       },

    });

    const mailOptions = {

      from: "info@mydomain.com",

      cc: "info@mydomain.com",

      to: email,

      subject: "Website Form",

      html: `

        First Name : ${fname} <br>

        Last Name : ${lname} <br>

        Email : ${email} <br>

        Subject : ${subject} <br>

        Message : ${msg}

      `,

    };

    transporter.sendMail(mailOptions, (error, info) => {

      if (error) {

        console.log("Error", error);

        res.status(401).json({ status: 401, error });

      } else {

        console.log("Email sent" + info.response);

        res.status(201).json({ status: 201, info });

      }

    });

  } catch (error) {

    res.status(401).json({ status: 401, error });

  }

});

Troubleshooting Steps Taken:

I've verified the email address and password used in the auth section of the transporter configuration match my Zoho account credentials.

Double-checked all firewall settings on the server to ensure they don't block outgoing traffic on port 465.

Tested the email sending functionality on the server using a tool like telnet and was able to connect to Zoho's SMTP server.