nodemailer-smtp-pool

SMTP transport module for Nodemailer

Applies for Nodemailer v1.x and not for v0.x where transports are built-in.

Usage

Install with npm

npm install nodemailer-smtp-pool

Require to your script

var nodemailer = require('nodemailer');
var smtpPool = require('nodemailer-smtp-pool');

Create a Nodemailer transport object

var transporter = nodemailer.createTransport(smtpPool(options))

Where

• options defines connection data
  • options.port is the port to connect to (defaults to 25 or 465)
  • options.host is the hostname or IP address to connect to (defaults to 'localhost')
  • options.secure defines if the connection should use SSL (if true) or not (if false)
  • options.ignoreTLS turns off STARTTLS support if true
  • options.name optional hostname of the client, used for identifying to the server
  • options.localAddress is the local interface to bind to for network connections
  • options.connectionTimeout how many milliseconds to wait for the connection to establish
  • options.greetingTimeout how many milliseconds to wait for the greeting after connection is established
  • options.socketTimeout how many milliseconds of inactivity to allow
  • options.debug if true, the connection emits all traffic between client and server as 'log' events
  • options.authMethod defines preferred authentication method, eg. 'PLAIN'
  • options.tls defines additional options to be passed to the socket constructor, eg. {rejectUnauthorized: true}
  • maxConnections (defaults to 5) is the count of maximum simultaneous connections to make against the SMTP server
  • maxMessages (defaults to 100) limits the message count to be sent using a single connection. After maxMessages messages the connection is dropped and a new one is created for the following messages

Pooled SMTP transport uses the same options as SMTP transport with the addition of maxConnections and maxMessages.

Example

var transport = nodemailer.createTransport(smtpPool({
    host: 'localhost',
    port: 25,
    auth: {
        user: 'username',
        pass: 'password'
    },
    maxConnections: 5,
    maxMessages: 10
}));

Using well-known services

If you do not want to specify the hostname, port and security settings for a well known service, you can use it by its name.

smtpPool({
    service: 'gmail',
    auth: ..
});

See the list of all supported services here.

Close the pool

Close all connections with close()

transport.close();

License

MIT