I'm building a notification application using nodemailer and I keep getting this error:

[Error: 140735155404800:error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol:../deps/openssl/openssl/ssl/s23_clnt.c:794:]

I am using a smtp server my job has. I'm an smtp noob so any help would be appreciated. I have sent email without any transport method but after a few emails the message object would then report my email being put in a "pending state":

{"accepted":[],"rejected":[],"pending":[{"domain":"xxxxx","exchange":"xxxx.xxxx",...

The above message occurs when I try to connect directly to the host as well.

Here is my code:

 //import nodemailer
var nodemailer = require('nodemailer');

// create reusable transporter object using SMTP
var transporter = nodemailer.createTransport({
     host: 'chelsmtp01.karmalab',
    port: '25',
    secure:true,
});



//email details
var mailOptions = {
    from: 'XXX', // sender address
    to: 'XXX', // list of receivers
    subject: stitle, // Subject line
    text: message, // plaintext body
    html: message 
};

// send mail with defined transport object
transporter.sendMail(mailOptions, function(error, info){
    if(error)
        return console.log(error);

    console.log('Message sent: ' + JSON.stringify(info));

    //transporter.close();
});

I have tried setting secure to false and then I get an invalid greeting error even if I set requireTLS true like some other forums have mentioned:

[Error: Invalid greeting from server:
554 chelmtp02.karmalab: 554 chelmtp02.karmalab]
code: 'EPROTOCOL',
response: '554 chelmtp02.karmalab',
responseCode: 554 }

EDIT: The SMPT server does not need user/password

EDIT: I can send email without a transport defined on my home network. I also managed to get my gmail to work as well. Could be a certificate or network issue

I'm building a notification application using nodemailer and I keep getting this error:

[Error: 140735155404800:error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol:../deps/openssl/openssl/ssl/s23_clnt.c:794:]

I am using a smtp server my job has. I'm an smtp noob so any help would be appreciated. I have sent email without any transport method but after a few emails the message object would then report my email being put in a "pending state":

{"accepted":[],"rejected":[],"pending":[{"domain":"xxxxx.","exchange":"xxxx.xxxx.",...

The above message occurs when I try to connect directly to the host as well.

Here is my code:

 //import nodemailer
var nodemailer = require('nodemailer');

// create reusable transporter object using SMTP
var transporter = nodemailer.createTransport({
     host: 'chelsmtp01.karmalab',
    port: '25',
    secure:true,
});



//email details
var mailOptions = {
    from: 'XXX', // sender address
    to: 'XXX', // list of receivers
    subject: stitle, // Subject line
    text: message, // plaintext body
    html: message 
};

// send mail with defined transport object
transporter.sendMail(mailOptions, function(error, info){
    if(error)
        return console.log(error);

    console.log('Message sent: ' + JSON.stringify(info));

    //transporter.close();
});

I have tried setting secure to false and then I get an invalid greeting error even if I set requireTLS true like some other forums have mentioned:

[Error: Invalid greeting from server:
554 chelmtp02.karmalab: 554 chelmtp02.karmalab]
code: 'EPROTOCOL',
response: '554 chelmtp02.karmalab',
responseCode: 554 }

EDIT: The SMPT server does not need user/password

EDIT: I can send email without a transport defined on my home network. I also managed to get my gmail to work as well. Could be a certificate or network issue

• javascript
• node.js
• server-side
• nodemailer
• serverside-javascript

1 Answer 1

Use secure:false in the configuration options if connecting to port 25. Using true indicates that you want to start a TLS connection but port 25 starts out as plaintext and gets upgraded later