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PHPMailer - A full-featured email creation and transfer class for PHP
Build status: 
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Class Features
- Probably the world's most popular code for sending email from PHP!
- Used by many open-source projects: WordPress, Drupal, 1CRM, SugarCRM, Yii, Joomla! and many more
- Integrated SMTP support - send without a local mail server
- Send emails with multiple TOs, CCs, BCCs and REPLY-TOs
- Multipart/alternative emails for mail clients that do not read HTML email
- Support for UTF-8 content and 8bit, base64, binary, and quoted-printable encodings
- SMTP authentication with LOGIN, PLAIN, NTLM, CRAM-MD5 and Google's XOAUTH2 mechanisms over SSL and TLS transports
- Error messages in 47 languages!
- DKIM and S/MIME signing support
- Compatible with PHP 5.0 and later
- Much more!
Why you might need it
Many PHP developers utilize email in their code. The only PHP function that supports this is the mail() function. However, it does not provide any assistance for making use of popular features such as HTML-based emails and attachments., (*4)
Formatting email correctly is surprisingly difficult. There are myriad overlapping RFCs, requiring tight adherence to horribly complicated formatting and encoding rules - the vast majority of code that you'll find online that uses the mail() function directly is just plain wrong!
Please don't be tempted to do it yourself - if you don't use PHPMailer, there are many other excellent libraries that you should look at before rolling your own - try SwiftMailer, Zend_Mail, eZcomponents etc., (*5)
The PHP mail() function usually sends via a local mail server, typically fronted by a sendmail binary on Linux, BSD and OS X platforms, however, Windows usually doesn't include a local mail server; PHPMailer's integrated SMTP implementation allows email sending on Windows platforms without a local mail server., (*6)
License
This software is distributed under the LGPL 2.1 license. Please read LICENSE for information on the
software availability and distribution., (*7)
Installation & loading
PHPMailer is available via Composer/Packagist (using semantic versioning), so just add this line to your composer.json file:, (*8)
"phpmailer/phpmailer": "~5.2"
or, (*9)
composer require phpmailer/phpmailer
If you want to use the Gmail XOAUTH2 authentication class, you will also need to add a dependency on the league/oauth2-client package., (*10)
Alternatively, copy the contents of the PHPMailer folder into one of the include_path directories specified in your PHP configuration. If you don't speak git or just want a tarball, click the 'zip' button at the top of the page in GitHub., (*11)
If you're not using composer's autoloader, PHPMailer provides an SPL-compatible autoloader, and that is the preferred way of loading the library - just require '/path/to/PHPMailerAutoload.php'; and everything should work. The autoloader does not throw errors if it can't find classes so it prepends itself to the SPL list, allowing your own (or your framework's) autoloader to catch errors. SPL autoloading was introduced in PHP 5.1.0, so if you are using a version older than that you will need to require/include each class manually., (*12)
PHPMailer does not declare a namespace because namespaces were only introduced in PHP 5.3., (*13)
If you want to use Google's XOAUTH2 authentication mechanism, you need to be running at least PHP 5.4, and load the dependencies listed in composer.json., (*14)
Minimal installation
While installing the entire package manually or with composer is simple, convenient and reliable, you may want to include only vital files in your project. At the very least you will need class.phpmailer.php. If you're using SMTP, you'll need class.smtp.php, and if you're using POP-before SMTP, you'll need class.pop3.php. For all of these, we recommend you use the autoloader too as otherwise you will either have to require all classes manually or use some other autoloader. You can skip the language folder if you're not showing errors to users and can make do with English-only errors. You may need the additional classes in the extras folder if you are using those features, including NTLM authentication and ics generation. If you're using Google XOAUTH2 you will need class.phpmaileroauth.php and class.oauth.php classes too, as well as the composer dependencies., (*15)
A Simple Example
<?php
require 'PHPMailerAutoload.php';
$mail = new PHPMailer;
//$mail->SMTPDebug = 3; // Enable verbose debug output
$mail->isSMTP(); // Set mailer to use SMTP
$mail->Host = 'smtp1.example.com;smtp2.example.com'; // Specify main and backup SMTP servers
$mail->SMTPAuth = true; // Enable SMTP authentication
$mail->Username = 'user@example.com'; // SMTP username
$mail->Password = 'secret'; // SMTP password
$mail->SMTPSecure = 'tls'; // Enable TLS encryption, `ssl` also accepted
$mail->Port = 587; // TCP port to connect to
$mail->setFrom('from@example.com', 'Mailer');
$mail->addAddress('joe@example.net', 'Joe User'); // Add a recipient
$mail->addAddress('ellen@example.com'); // Name is optional
$mail->addReplyTo('info@example.com', 'Information');
$mail->addCC('cc@example.com');
$mail->addBCC('bcc@example.com');
$mail->addAttachment('/var/tmp/file.tar.gz'); // Add attachments
$mail->addAttachment('/tmp/image.jpg', 'new.jpg'); // Optional name
$mail->isHTML(true); // Set email format to HTML
$mail->Subject = 'Here is the subject';
$mail->Body = 'This is the HTML message body <b>in bold!</b>';
$mail->AltBody = 'This is the body in plain text for non-HTML mail clients';
if(!$mail->send()) {
echo 'Message could not be sent.';
echo 'Mailer Error: ' . $mail->ErrorInfo;
} else {
echo 'Message has been sent';
}
You'll find plenty more to play with in the examples folder., (*16)
That's it. You should now be ready to use PHPMailer!, (*17)
Localization
PHPMailer defaults to English, but in the language folder you'll find numerous (46 at the time of writing!) translations for PHPMailer error messages that you may encounter. Their filenames contain ISO 639-1 language code for the translations, for example fr for French. To specify a language, you need to tell PHPMailer which one to use, like this:, (*18)
// To load the French version
$mail->setLanguage('fr', '/optional/path/to/language/directory/');
We welcome corrections and new languages - if you're looking for corrections to do, run the phpmailerLangTest.php script in the tests folder and it will show any missing translations., (*19)
Documentation
Examples of how to use PHPMailer for common scenarios can be found in the examples folder. If you're looking for a good starting point, we recommend you start with the Gmail example., (*20)
There are tips and a troubleshooting guide in the GitHub wiki. If you're having trouble, this should be the first place you look as it's the most frequently updated., (*21)
Complete generated API documentation is available online., (*22)
You'll find some basic user-level docs in the docs folder, and you can generate complete API-level documentation using the generatedocs.sh shell script in the docs folder, though you'll need to install PHPDocumentor first. You may find the unit tests a good source of how to do various operations such as encryption., (*23)
If the documentation doesn't cover what you need, search the many questions on Stack Overflow, and before you ask a question about "SMTP Error: Could not connect to SMTP host.", read the troubleshooting guide., (*24)
Tests
There is a PHPUnit test script in the test folder., (*25)
Build status: , (*26)
If this isn't passing, is there something you can do to help?, (*27)
Security
Please disclose any vulnerabilities found responsibly - report any security problems found to the maintainers privately., (*28)
PHPMailer versions prior to 5.2.20 (released December 28th 2016) are vulnerable to CVE-2016-10045 a remote code execution vulnerability, responsibly reported by Dawid Golunski, and patched by Paul Buonopane (@Zenexer)., (*29)
PHPMailer versions prior to 5.2.18 (released December 2016) are vulnerable to CVE-2016-10033 a critical remote code execution vulnerability, responsibly reported by Dawid Golunski., (*30)
See SECURITY for more detail on security issues., (*31)
Contributing
Please submit bug reports, suggestions and pull requests to the GitHub issue tracker., (*32)
We're particularly interested in fixing edge-cases, expanding test coverage and updating translations., (*33)
With the move to the PHPMailer GitHub organisation, you'll need to update any remote URLs referencing the old GitHub location with a command like this from within your clone:, (*34)
git remote set-url upstream https://github.com/PHPMailer/PHPMailer.git
Please don't use the SourceForge or Google Code projects any more., (*35)
Development time and resources for PHPMailer are provided by Smartmessages.net, a powerful email marketing system., (*36)
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Other contributions are gladly received, whether in beer 🍺, T-shirts 👕, Amazon wishlist raids, or cold, hard cash 💰., (*38)
Changelog
See changelog., (*39)
History
- PHPMailer was originally written in 2001 by Brent R. Matzelle as a SourceForge project.
- Marcus Bointon (coolbru on SF) and Andy Prevost (codeworxtech) took over the project in 2004.
- Became an Apache incubator project on Google Code in 2010, managed by Jim Jagielski.
- Marcus created his fork on GitHub.
- Jim and Marcus decide to join forces and use GitHub as the canonical and official repo for PHPMailer.
- PHPMailer moves to the PHPMailer organisation on GitHub.
What's changed since moving from SourceForge?
- Official successor to the SourceForge and Google Code projects.
- Test suite.
- Continuous integration with Travis-CI.
- Composer support.
- Public development.
- Additional languages and language strings.
- CRAM-MD5 authentication support.
- Preserves full repo history of authors, commits and branches from the original SourceForge project.
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