I am writing this code to sign up the user. I used Nodemailer to send a verification email to activate the account. The post request works well but I did not receive a verification email and here is my code:

const transporter = nodemailer.createTransport({
    service: "Gmail",
    auth: {
        user: process.env.EMAIL_USERNAME,
        pass: process.env.EMAIL_PASSWORD,
    },
});

exports.signup = async(req, res) => {
    const { email } = req.body
       
    if (!email) {
        return res.status(422).send({ message: "Missing email." })
    }
    try {
       
        const existingUser = await User.findOne({ email }).exec();
        if (existingUser) {
            return res.status(409).send({
                message: "Email is already in use."
            });
        }
      
        const user = await new User({
            _id: new mongoose.Types.ObjectId,
            email: email
        }).save();
        
        const verificationToken = user.generateVerificationToken();
      
        const url = `http://localhost:5000/api/verify/${verificationToken}`
        transporter.sendMail({
            to: email,
            subject: 'Verify Account',
            html: `Click <a href = '${url}'>here</a> to confirm your email.`
        })
        return res.status(201).send({
            message: `Sent a verification email to ${email}`
        });
    } catch (err) {
        return res.status(500).send(err);
    }
}

WHEN I SEND THE REQUEST, SHOWS ME LIKE THIS

CodePudding user response：

Go to Google account, than Security and Less secure app access, and set to ON. Restart Your app and Now should up and running ;-) Note That - In Your .env file, enter Your credentials without any quotes