Overview

mail-listener-type library for node.js. Get notification when new email arrived to inbox or when message metadata (e.g. flags) changes externally. Uses IMAP protocol.

This project are forked from MateMalice/mail-listener2.

Use

Install

npm install mail-listener-type

JavaScript Code:

import { MailListener } from "mail-listener-type";

var mailListener = new MailListener({
  username: "imap-username",
  password: "imap-password",
  host: "imap-host",
  port: 993, // imap port
  tls: true,
  connTimeout: 10000, // Default by node-imap
  authTimeout: 5000, // Default by node-imap,
  debug: console.log, // Or your custom function with only one incoming argument. Default: null
  autotls: 'never', // default by node-imap
  tlsOptions: { rejectUnauthorized: false },
  mailbox: "INBOX", // mailbox to monitor
  searchFilter: ["ALL"], // the search filter being used after an IDLE notification has been retrieved
  markSeen: true, // all fetched email willbe marked as seen and not fetched next time
  fetchUnreadOnStart: true, // use it only if you want to get all unread email on lib start. Default is `false`,
  attachments: true, // download attachments as they are encountered to the project directory
  attachmentOptions: { directory: "attachments/" } // specify a download directory for attachments
});

mailListener.start(); // start listening

// stop listening
//mailListener.stop();

mailListener.on("server:connected", function(){
  console.log("imapConnected");
});

mailListener.on("mailbox", function(mailbox){
  console.log("Total number of mails: ", mailbox.messages.total); // this field in mailbox gives the total number of emails
});

mailListener.on("server:disconnected", function(){
  console.log("imapDisconnected");
});

mailListener.on("error", function(err){
  console.log(err);
});

mailListener.on("headers", function(headers, seqno){
  // do something with mail headers
});

mailListener.on("body", function(body, seqno){
  // do something with mail body
})

mailListener.on("attachment", function(attachment, path, seqno){
  // do something with attachment
});

mailListener.on("mail", function(mail, seqno) {
  // do something with the whole email as a single object
})

// it's possible to access imap object from node-imap library for performing additional actions. E.x.
mailListener.imap.move(:msguids, :mailboxes, function(){})

That's easy!

Attachments

Attachments in this version are buffered. This feature is based on how mailparser's simpleParser function handles attachments. Setting attachments: true will download attachments as buffer objects by default to the project directory. A specific download directory may be specified by setting attachmentOptions: { directory: "attachments/"}. The "attachment" event will be fired every time an attachment is encountered.

Testing

A test script is available at test.js. Before using the test script, it is necessary to set the following environment variables:

• IMAPUSER - IMAP account username.
• IMAPPASS - IMAP account password.
• IMAPHOST - IMAP server hostname (e.g. imap.example.com).

The test script assumes that the IMAP host supports TLS and that the port is the usual 993. These values can be changed in test.js if necessary.

To run the test script, simply execute:

export IMAPUSER='[email protected]' IMAPPASS='password' IMAPHOST='imap.example.com'; node test.js

License

MIT