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Review email documentation
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Will Rossiter
Cam Findlay
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@ -2,104 +2,153 @@ summary: Send HTML and plain text email from your SilverStripe application.
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# Email
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SilverStripe has emailing functionality using the built-in mail() function in PHP.
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Features include sending plaintext- and HTML emails, sending bulk emails, subscription, handling bounced back emails.
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Creating and sending email in SilverStripe is done through the [api:Email] and [api:Mailer] classes. This document
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covers how to create an `Email` instance, customize it with a HTML template, then send it through a custom `Mailer`.
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## Configuration
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Your PHP configuration needs to include the SMTP module for sending emails.
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If you are not running an SMTP server together with your webserver, you might need to setup PHP with the credentials for
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an external SMTP server (see [PHP documentation for mail()](http://php.net/mail)).
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Out of the box, SilverStripe will use the built-in PHP `mail()` command. If you are not running an SMTP server, you
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will need to either configure PHP's SMTP settings (see [PHP documentation](http://php.net/mail) to include your mail
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server configuration or use one of the third party SMTP services like [Mandrill](https://github.com/lekoala/silverstripe-mandrill)
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and [Postmark](https://github.com/fullscreeninteractive/silverstripe-postmarkmailer).
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## Usage
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### Sending combined HTML and Plaintext
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By default, emails are sent in both HTML and Plaintext format.
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A plaintext representation is automatically generated from the system
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by stripping HTML markup, or transforming it where possible
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(e.g. `<strong>text</strong>` is converted to `*text*`).
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:::php
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$email = new Email($from, $to, $subject, $body);
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$email->send();
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The default HTML template is located in `framework/templates/email/GenericEmail.ss`.
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### Sending Plaintext only
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### Sending plain text only
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:::php
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$email = new Email($from, $to, $subject, $body);
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$email->sendPlain();
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### Templates
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### Sending combined HTML and plain text
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* Create a SS-template file called, in this example we will use 'MyEmail.ss' inside `mysite/templates/email`.
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* Fill this out with the body text for your email. You can use any [SS-template syntax](/topics/templates) (e.g. `<% loop %>`,
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`<% if %>`, $FirstName etc)
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* Choose your template with **setTemplate()**
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* Populate any custom data into the template before sending with **populateTemplate()**
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Example:
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By default, emails are sent in both HTML and Plaintext format. A plaintext representation is automatically generated
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from the system by stripping HTML markup, or transforming it where possible (e.g. `<strong>text</strong>` is converted
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to `*text*`).
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:::php
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$email = new Email($from, $to, $subject, $body);
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$email->setTemplate('MyEmail');
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$email->send();
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// You can call this multiple times or bundle everything into an array, including DataSetObjects
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$email->populateTemplate(Member::currentUser());
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<div class="info" markdown="1">
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The default HTML template for emails is named `GenericEmail` and is located in `framework/templates/email/`. To
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customize this template, copy it to the `mysite/templates/Email/` folder or use `setTemplate` when you create the
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`Email` instance.
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</div>
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$welcomeMsg = 'Thank you for joining on '.date('Y-m-d'.'!');
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$email->populateTemplate(array(
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'WelcomeMessage' => $welcomeMsg, // Accessible in template via $WelcomeMessage
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));
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### Templates
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HTML emails can use custom templates using the same template language as your website template. You can also pass the
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email object additional information using the `populateTemplate` method.
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**mysite/templates/Email/MyCustomEmail.ss**
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:::ss
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<h1>Hi $Member.FirstName</h1>
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<p>You can go to $Link.</p>
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The PHP Logic..
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:::php
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$email = new Email();
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$email
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->setFrom($from)
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->setTo($to)
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->setSubject($subject)
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->setTemplate('MyCustomEmail')
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->populateTemplate(new ArrayData(array(
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'Member' => Member::currentUser(),
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'Link' => $link
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)));
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$email->send();
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<div class="alert" markdown="1">
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As we've added a new template file (`MyCustomEmail`) make sure you clear the SilverStripe cache for your changes to
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take affect.
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</div>
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### Subclassing
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## Sub classing
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Class definition:
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To keep your application code clean and your internal API clear, a better approach to generating an email is to create
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a new subclass of `Email` which takes the required dependencies and handles setting the properties itself.
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**mysite/code/MyCustomEmail.php**
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:::php
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<?php
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class MyEmail extends Email {
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protected
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$to = '$Email', // Be sure to encase this in single-quotes, as it is evaluated later by the template parser
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$from = 'email@email.com',
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$ss_template = 'MyEmail';
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protected $ss_template = "MyEmail";
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public function __construct($member) {
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$from = 'no-reply@mysite.com';
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$to = $member->Email;
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$subject = "Welcome to our site.";
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$link = Director::absoluteBaseUrl();
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parent::__construct($from, $to, $subject);
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$this->populateTemplate(new ArrayData(array(
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'Member' => $member->Email,
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'Link' => $link
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)));
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}
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}
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Usage:
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Then within your application, usage of the email is much clearer to follow.
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:::php
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<?php
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$email = new MyEmail();
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$email->populateTemplate(Member::currentUser()); // This will populate the template, $to, $from etc variables if they exist
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$email->send(); // Will immediately send an HTML email with appropriate plain-text content
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$member = Member::currentUser();
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$email = new MyEmail($member);
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$email->send();
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### Administrator Emails
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## Administrator Emails
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You can influence the default sender address of emails through the `Email.admin_email`
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[configuration setting](/topics/configuration). This address is used if the `from` field is empty.
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You can set the default sender address of emails through the `Email.admin_email` [configuration setting](/developer_guides/configuration).
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### Redirecting Emails
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**mysite/_config/app.yml**
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Further [configuration settings](/topics/configuration) relating to email rewriting:
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:::yaml
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Email:
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admin_email: support@silverstripe.org
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* `Email.send_all_emails_to` will redirect all emails sent to the given address. Handy for testing!
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* `Email.cc_all_emails_to` and `Email.bcc_all_emails_to` will keep the email going to its original recipients, but
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add an additional recipient in the BCC/CC header. Good for monitoring system-generated correspondence on the live
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systems.
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<div class="alert" markdown="1">
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Remember, setting a `from` address that doesn't come from your domain (such as the users email) will likely see your
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email marked as spam. If you want to send from another address think about using the `replyTo` method.
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</div>
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## Redirecting Emails
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There are several other [configuration settings](/developer_guides/configuration) to manipulate the email server.
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* `Email.send_all_emails_to` will redirect all emails sent to the given address. This is useful for testing and staging
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servers where you do not wish to send emails out.
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* `Email.cc_all_emails_to` and `Email.bcc_all_emails_to` will add an additional recipient in the BCC / CC header.
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These are good for monitoring system-generated correspondence on the live systems.
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Configuration of those properties looks like the following:
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**mysite/_config.php**
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:::php
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if(Director::isLive()) Config::inst()->update('Email', 'bcc_all_emails_to', "client@example.com");
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else Config::inst()->update('Email', 'send_all_emails_to', "developer@example.com");
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if(Director::isLive()) {
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Config::inst()->update('Email', 'bcc_all_emails_to', "client@example.com");
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} else {
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Config::inst()->update('Email', 'send_all_emails_to', "developer@example.com");
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}
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### Setting custom replyTo
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:::php
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$email = new Email(..);
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$email->replyTo('me@address.com');
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### Setting Custom Headers
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@ -111,13 +160,59 @@ $value)**
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$email->addCustomHeader('HeaderName', 'HeaderValue');
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..
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<div class="info" markdown="1">
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See this [Wikipedia](http://en.wikipedia.org/wiki/E-mail#Message_header) entry for a list of header names.
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</div>
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See [Wikipedia E-mail Message header](http://en.wikipedia.org/wiki/E-mail#Message_header) for a list of header names.
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### Newsletters
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## Newsletters
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The [newsletter module](http://silverstripe.org/newsletter-module) provides a UI and logic to send batch emails.
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## Custom Mailers
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SilverStripe supports changing out the underlying web server SMTP mailer service through the `Email::set_mailer()`
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function. A `Mailer` subclass will commonly override the `sendPlain` and `sendHTML` methods to send emails through curl
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or some other process that isn't the built in `mail()` command.
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<div class="info" markdown="1">
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There are a number of custom mailer add-ons available like [Mandrill](https://github.com/lekoala/silverstripe-mandrill)
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and [Postmark](https://github.com/fullscreeninteractive/silverstripe-postmarkmailer).
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</div>
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In this example, `LocalMailer` will take any email's going while the site is in Development mode and save it to the
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assets folder instead.
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**mysite/code/LocalMailer.php**
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:::php
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<?php
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class LocalMailer extends Mailer {
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function sendHTML($to, $from, $subject, $htmlContent, $attachedFiles = false, $customheaders = false, $plainContent = false, $inlineImages = false) {
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$file = ASSETS_PATH . '/_mail_'. urlencode(sprintf("%s_%s", $subject, $to));
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file_put_contents($file, $htmlContent);
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}
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function sendPlain($to, $from, $subject, $htmlContent, $attachedFiles = false, $customheaders = false, $plainContent = false, $inlineImages = false) {
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$file = ASSETS_PATH . '/_mail_'. urlencode(sprintf("%s_%s", $subject, $to));
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file_put_contents($file, $htmlContent);
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}
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}
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**mysite/_config.php**
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:::php
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if(Director::isLive()) {
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Email::set_mailer(new PostmarkMailer());
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} else {
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Email::set_mailer(new LocalMailer());
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}
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### Setting bounce handler
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A bounce handler email can be specified one of a few ways:
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@ -128,4 +223,4 @@ A bounce handler email can be specified one of a few ways:
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## API Documentation
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`[api:Email]`
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* [api:Email]
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