mail

Node Mail

This SMTP client helps you send email safely and easily using Node.JS. The client currently supports TLS and auth-login.

Installation

Node Mail has no third-party dependencies. Download the library and add mail to a folder in your NODE_PATH.

Sending Mail

The Mail class encapsulates connection settings and can be used as a safe, high-level mailer.

var sys = require('sys'),
    mail = require('mail').Mail({
      host: 'smtp.gmail.com',
      port: 587,
      username: '[e-mail]',
      password: '**password**'
    });

mail.message({
    from: '[e-mail]',
    to: ['[e-mail]'],
    subject: 'Hello from Node.JS'
  })
  .body('Node speaks SMTP!')
  .send(function(err) {
    if (err) throw err;
    sys.debug('Sent!');
  });

Mail(settings)

Create a new mailer that can be used to send messages. Possible settings include:

• port: server listens on this port (defualt: 25)
• host: server hostname
• domain: the domain of the sender (default: hostname -f)
• secure: true, false, or crypto credentials (defualt: true)
• username: user for server authentication
• password: password for server authentication

Mail.message(headers)

Begin a MailTransaction. The headers object may contain any any SMTP headers. When the message is formatted, email addresses are validated, header names are title-cased, and header values escaped to prevent injection. A Date header is automatically added.

An email address may be an array, a single address, or a string with command-separated addresses. Individual addresses may be bare or in the format "Display Name" <[e-mail]>.

MailTransaction.body(text)

Add a body to a mail transaction. Long lines are automatically wrapped.

MailTransaction.send(callback)

Connect to the server, transmit the message, and quit. The callback should be in the form function(err, message) { ... }. Upon success, err is null and message is set to the Message object that was sent to the server.

SMTP Client

The SMTP client library is similar in spirit to Node's http module. It doesn't provide safety features like address validation, header escaping, or body wrapping. The Client class extends net.Stream.

createClient(port, host, [domain=hostname -f, secure=true])

Return a new Client object. The port and host are required. The optional secure parameter can be true, false, or a crypto credentials object. If it is false, it won't attempt to use TLS even if the server supports it.

var client = mail.createClient(587, 'smtp.gmail.com');
client.setLogin('[e-mail]', '**password**');
client.on('error', function(err) {
  client.end();
  throw err;
});

event: 'ready'

This event is emitted once the client has connected and said EHLO.

event: 'reply'

This event is emitted when a reply is received from the server. The handler is passed any number of Reply objects, which have code and text properties.

Client.mail(from, to)

Begin a ClientTransaction. The from parameter is the sender's email address and to is an array of recipients. Addresses must be in a bare format.

Client.command(name, [args, callback])

Send a command to the server. Optional args may be given, which is a string representing command arguments. Passing a callback is a shortcut for .withReply(250, callback).

Client.withReply([code, ]callback)

Listen for the next reply, passing any Reply objects along to callback. If code is given, throw an error if the reply code doesn't match.

Client.quit()

Terminate the connection with a QUIT command.

Client.setLogin(username, password)

If the server requires AUTH LOGIN, enable it by setting the authentication parameters.

ClientTransaction

The Client.mail() method returns a new ClientTransaction. Once the MAIL FROM, RCPT TO, and DATA commands have been sent, the transaction emits 'ready' and data can be written.

var from = '[e-mail]',
    to = '[e-mail]',
    transaction = client.mail(from, [to]);

transaction.on('ready', function() {
  this.write(...)
      .end();
});

transaction.on('end', function() {
  client.quit();
});

event: 'ready'

Emitted once the envelope is sent and data is can be written.

event: 'end'

Emitted once the DATA command has been successfully terminated.

ClientTransaction.write(data)

Write data.

ClientTransaction.puts(data)

Write a line of data (shortcut for .write(data + '\r\n').

ClientTransaction.end([data])

Optionally write data, then terminate the DATA command with a '.\r\n'. Upon success, an 'end' event is emitted.

Compatibility

Node Mail has been tested against qmail and gmail using Node version v0.1.103. A working subset of these RFCs are supported:

• Internet Message Format
• Simple Mail Transfer Protocol
• Authentication Extension
• SMTP Transport Layer Security

There is not currently support for MIME.

License

Copyright (c) 2010, Ben Weaver <[e-mail]> All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

• Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

• Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

• Neither the name of the nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.