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Fork of tinysmtp with bug fixes and python 3 compatibility

Project description

This is a fork of Rick Harris’s tinysmtp package with a few fixes and Python 3 compatibility.


with Mail().connect() as mail:
    msg = Message(
        '', 'Subject', [''], body='body')

Connections may be configured from a URL specified in an environment variable:

export MAILSEND_URL="smtp+tls://"

Or as individual variables:


Or in code:

mail = Mail('smtp://')
mail2 = Mail('',

Call mail.send to send a message:

mail = Mail('smtp://')
          recipients=['', ''],
          body='Hello everyone!',
          html='<p>Hello everyone!</p>',

Or use the message class to construct messages piecemeal:

msg = Message('', 'Hello!')
msg.body = 'Hello'
msg.recipients = [''] = ['']
msg.bcc = ['']

mail = Mail('smtp://')

To send multiple messages in a single connection, use Mail.connect:

with mail.connect() as conn:

1.1.1 (released 2020-06-19)

  • Add support for url quoted usernames/passwords in SMTP urls

1.1.0 (released 2020-06-18)

  • Add support for sending through commandline MTAs (sendmail etc)

1.0.3 (released 2019-12-02)

  • Bugfix: no longer request the SMTPUTF8 extension for addresses that do not appear in SMTP commands.

1.0.2 (released 2019-11-28)

  • Fixed broken 1.0.1 release

1.0.1 (released 2019-11-28)

  • Bugfix: Mail.send() now sets the envelope from/to addresses correctly from message headers in the form “Name <>”

1.0.0 (released 2019-11-27)

  • Dropped Python 2 support

  • Feature: Mail.send() now accepts optional keyword only arguments envelope_from and envelope_to.

0.1.5 (released 2019-06-18)

  • Bugfix: don’t add a duplicate Message-Id header if one is provided

0.1.4 (released 2017-08-27)

  • Bugfix: extra_headers option is now python 3 compatible

0.1.3 (released 2017-04-19)

  • Added ability to send stdlib email.message.Message objects via mailsend

0.1.2 (released 2016-09-02)

  • The mime structure of HTML emails is now compatible with Outlook 2011

  • The SMTPUTF8 extension is requested when messages contain utf-8 addresses. (feature is available in Python 3.5 only)

0.1.1 (released 2015-12-21)

  • Fixes for compatibility with envparse-0.2

0.1 (released 2015-12-19)

  • Forked from

  • Added configuration via URL (eg Connection('smtp://'))

  • Various bug fixes

  • Added rewrite_to argument to Mail class constructor method. This causes all messages to be rewritten to the given address(es), and is expected to be used for development/testing.

  • Added bcc argument to Mail class constructor method. This causes all messages to be bcc’d to the given address(es).

  • Added suppress_send argument to the Mail class constructor. This causes messages to not be sent (but may be still accessed via Mail.subscribe)

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