邮件中证书链错误中的自签名证书

Question

I tried to write a simple mail program. I used node mailer and SMTP protocol module. I executed. But it shows an error like:

self signed certificate in certificate chain error in mail

what is the problem?

 var express = require('express'); var app=express(); var nodemailer = require('nodemailer'); var smtpTransport = require('nodemailer-smtp-transport'); app.get('/nodemail', function(req, res, next) { var transporter = nodemailer.createTransport(smtpTransport({ service: 'Gmail', host: 'smtp.gmail.com', port: 465, auth: { user: 'demodevelopers6@gmail.com', pass: '***********' } })); var link="https://codeforgeek.com/2016/06/node-js-redis-tutorial-building-email-verification-system/"; transporter.sendMail({ from: "demodevelopers6@gmail.com", subject:"sailjstutorials" , to: "vignesh.mack03@gmail.com", html : "Hello"+"vignesh <br> Please Click on the link to verify your email.<br><a href="+link+">Click here to verify</a>" }, function(error, info) { if (error) { return console.log(error); } console.log('Message %s sent: %s', info.messageId, info.response); console.log("Mail sent successfully"); res.write("Mail sent successfully"); }); }); app.listen(8086,function() { console.log("port listening"); });

Answer 1

I had the same issue just now, try checking out the link below for a more detailed response.

Error: self signed certificate in certificate chain Nodejs nodemailer express

Use tls.rejectUnauthorized = false to help avoid the issue.

Example:

        let transporter = nodemailer.createTransport({
            service: 'gmail',
            auth: {
                user: 'myemail@gmail.com', 
                pass: 'password' 
            },
            tls: {
                rejectUnauthorized: false
            }
        });