How to attach file to an email with nodemailer

Question

I have code that send email with nodemailer in nodejs but I want to attach file to an email but I can\'t find way to do that I search on ne

Answer 1

Include in the var mailOption the key attachments, as follow:

var mailOptions = {
...
attachments: [
    {   // utf-8 string as an attachment
        filename: 'text1.txt',
        content: 'hello world!'
    },
    {   // binary buffer as an attachment
        filename: 'text2.txt',
        content: new Buffer('hello world!','utf-8')
    },
    {   // file on disk as an attachment
        filename: 'text3.txt',
        path: '/path/to/file.txt' // stream this file
    },
    {   // filename and content type is derived from path
        path: '/path/to/file.txt'
    },
    {   // stream as an attachment
        filename: 'text4.txt',
        content: fs.createReadStream('file.txt')
    },
    {   // define custom content type for the attachment
        filename: 'text.bin',
        content: 'hello world!',
        contentType: 'text/plain'
    },
    {   // use URL as an attachment
        filename: 'license.txt',
        path: 'https://raw.github.com/andris9/Nodemailer/master/LICENSE'
    },
    {   // encoded string as an attachment
        filename: 'text1.txt',
        content: 'aGVsbG8gd29ybGQh',
        encoding: 'base64'
    },
    {   // data uri as an attachment
        path: 'data:text/plain;base64,aGVsbG8gd29ybGQ='
    }
]

}

Choose the option that adjust to your needs.

Link:Nodemailer Repository GitHub

Good Luck!!

Answer 2

Just look at here. Nodemailer > Message configuration > Attachments

The code snippet is below (pdfkit gets the stream):

// in async func
pdf.end();
const stream = pdf;
const attachments = [{ filename: 'fromFile.pdf', path: './output.pdf', 
contentType: 'application/pdf' }, { filename: 'fromStream.pdf', content: stream, contentType: 'application/pdf' }];
await sendMail('"Sender" <sender@test.com>', 'reciver@test.com', 'Test Send Files', '<h1>Hello</h1>', attachments);

Stream uses content not streamSource This bothered me before, share with everyone :)

Answer 3

var mailer = require('nodemailer');
mailer.SMTP = {
    host: 'host.com', 
    port:587,
    use_authentication: true, 
    user: 'you@example.com', 
    pass: 'xxxxxx'
};

Then read a file and send an email :

fs.readFile("./attachment.txt", function (err, data) {

    mailer.send_mail({       
        sender: 'sender@sender.com',
        to: 'dest@dest.com',
        subject: 'Attachment!',
        body: 'mail content...',
        attachments: [{'filename': 'attachment.txt', 'content': data}]
    }), function(err, success) {
        if (err) {
            // Handle error
        }

    }
});

Answer 4

I've tested each of these attachments methods and none is ok for me. Here's my mailer function code without the smtp transport config :

function mailer(from, to, subject, attachments, body) {

    // Setup email
    var mailOptions = {
        from: from,
        to: to,
        subject: subject,
        attachments: attachments,
        html: body
    };

    // send mail with defined transport object
    smtpTransport.sendMail(mailOptions, function(error, response){
        if(error) console.log(error);
        else console.log("Message sent: " + response.message);
        // shut down the connection pool, no more messages
        smtpTransport.close();
    });
}

And then the call :

var attachments = [{ filename: 'test.pdf', path: __dirname + '/pdf/test.pdf', contentType: 'application/pdf' }];
mailer("exped@gmail.com", "mymail@gmail.com", "Test", attachments, "<h1>Hello</h1>");

The mail comes successfully but with no attachment. Even if I set a string or buffer attachment it's the same result.

Answer 5

The alternative solution is to host your images online using a CDN and link to the online image source in your HTML, eg. <img src="list_image_url_here">.

(I had problems with nodemailer's image embedding using nodemailer version 2.6.0, which is why I figured out this workaround.)

An added benefit of this solution is that you're sending no attachments to nodemailer, so the sending process is more streamlined.

Answer 6

Your code is almost right, just need to add, "attachments" property for attaching the files in your mail,

YOUR mailOption:

var mailOption = {
        from: from,
        to:  to,
        subject: subject,
        text: text,
        html: html
}

Just add attachments like

var mailOption = {
        from: from,
        to:  to,
        subject: subject,
        text: text,
        html: html,
        attachments: [{
            filename: change with filename,
            path: change with file path
        }]
}

attachments also provide some other way to attach file for more information check nodemailer community's documentation HERE