Message #8
(#8) Body ['TEXT'] found, 6897 total bytes
(#8) Body ['TEXT'] (330/6897)
(#8) Body ['TEXT'] (1356/6897)
(#8) Body ['TEXT'] (2757/6897)
(#8) Body ['TEXT'] (3406/6897)
(#8) Body ['TEXT'] (4807/6897)
(#8) Body ['TEXT'] (6208/6897)
(#8) Body ['TEXT'] (6897/6897)
(#8) Body ['TEXT'] Finished
(#8) Parsed header: { from: [ 'Google <no-reply@accounts.google.com>' ] }
(#8) Attributes: { date: 2017-08-21T20:16:36.000Z,
flags: [ '\Seen' ],
uid: 13,
modseq: '2554',
'x-gm-labels': [],
'x-gm-msgid': '1576373160393136995',
'x-gm-thrid': '1576373160393136995' }
(#8) Finished
Done fetching all messages!
Connection ended

let imap = new Imap({
        user: 'email@gmail.com',
        password: 'senha',
        host: 'imap.gmail.com',
        port: 993,
        tls: true
    });

    function openInbox(cb) {
        imap.openBox('INBOX', true, cb);
    }

    imap.once('ready', function() {
        openInbox(function(err, box) {
            if (err) throw err;
            let f = imap.seq.fetch(box.messages.total + ':*', { bodies: ['HEADER.FIELDS (FROM)','TEXT'] });
            f.on('message', function(msg, seqno) {
                console.log('Message #%d', seqno);
                let prefix = '(#' + seqno + ') ';
                msg.on('body', function(stream, info) {
                    if (info.which === 'TEXT')
                        console.log(prefix + 'Body [%s] found, %d total bytes', inspect(info.which), info.size);
                    let buffer = '', count = 0;
                    stream.on('data', function(chunk) {
                        count += chunk.length;
                        buffer += chunk.toString('utf8');
                        if (info.which === 'TEXT')
                            console.log(prefix + 'Body [%s] (%d/%d)', inspect(info.which), count, info.size);
                    });
                    stream.once('end', function() {
                        if (info.which !== 'TEXT')
                            console.log(prefix + 'Parsed header: %s', inspect(Imap.parseHeader(buffer)));
                        else
                            console.log(prefix + 'Body [%s] Finished', inspect(info.which));
                    });
                });
                msg.once('attributes', function(attrs) {
                    console.log(prefix + 'Attributes: %s', inspect(attrs, false, 8));
                });
                msg.once('end', function() {
                    console.log(prefix + 'Finished');
                });
            });
            f.once('error', function(err) {
                console.log('Fetch error: ' + err);
            });
            f.once('end', function() {
                console.log('Done fetching all messages!');
                imap.end();
            });
        });
    });

    imap.once('error', function(err) {
        console.log(err);
    });

    imap.once('end', function() {
        console.log('Connection ended');
    });

    imap.connect();