mailer 1.0.0


Mailer is an easy to use library for composing and sending emails in Dart.

Mailer supports file attachments, HTML emails and multiple transport methods.


  • Plaintext and HTML emails
  • Unicode support
  • Attachments
  • Secure (filters and sanitizes all fields context-wise)
  • Use any SMTP server like Gmail, Live, SendGrid, Amazon SES
  • SSL/TLS support
  • Pre-configured services (Gmail, Live,, etc.). Just fill in your username and password.

Filing bug tickets

Please call printDebugInformation() from the mailer package and send the output along with your helpful explanation of what went wrong.


  • All possible SMTP authentication methods (now just LOGIN)
  • Sendmail
  • Stream attachments
  • String-based attachments


Sending an email with SMTP

In this example we send an email using a Gmail account.

import 'package:mailer/mailer.dart';

main() {
  // If you want to use an arbitrary SMTP server, go with `new SmtpOptions()`.
  // This class below is just for convenience. There are more similar classes available.
  var options = new GmailSmtpOptions()
    ..username = 'your gmail username'
    ..password = 'your gmail password'; // Note: if you have Google's "app specific passwords" enabled,
                                        // you need to use one of those here.

  // How you use and store passwords is up to you. Beware of storing passwords in plain.

  // Create our email transport.
  var emailTransport = new SmtpTransport(options);

  // Create our mail/envelope.
  var envelope = new Envelope()
    ..from = ''
    ..subject = 'Testing the Dart Mailer library 語'
    ..attachments.add(new Attachment(file: new File('path/to/file')))
    ..text = 'This is a cool email message. Whats up? 語'
    ..html = '<h1>Test</h1><p>Hey!</p>';

  // Email it.
    .then((envelope) => print('Email sent!'))
    .catchError((e) => print('Error occurred: $e'));


This library is licensed under MIT.

1. Depend on it

Add this to your package's pubspec.yaml file:

  mailer: "^1.0.0"

2. Install it

You can install packages from the command line:

$ pub get

Alternatively, your editor might support pub. Check the docs for your editor to learn more.

3. Import it

Now in your Dart code, you can use:

import 'package:mailer/mailer.dart';


Compose and send emails from Dart. Supports file attachments, HTML emails and multiple transport methods.


Email Kai Sellgren