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<?php |
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namespace Kinglozzer\SilverStripeMailgunner; |
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use Mailer as SilverstripeMailer; |
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use Mailgun\Mailgun; |
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use Mailgun\Messages\MessageBuilder; |
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class Mailer extends SilverstripeMailer |
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{ |
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/** |
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* @var string |
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* @config |
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*/ |
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private static $api_domain = ''; |
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/** |
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* @var string |
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* @config |
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*/ |
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private static $api_endpoint = 'api.mailgun.net'; |
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/** |
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* @var string |
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* @config |
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*/ |
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private static $api_key = ''; |
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/** |
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* @var boolean |
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* @config |
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*/ |
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private static $api_ssl = true; |
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/** |
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* @var string |
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* @config |
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*/ |
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private static $api_version = 'v3'; |
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/** |
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* An array of temporary file handles opened to store attachments |
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* @var array |
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*/ |
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protected $tempFileHandles = []; |
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/** |
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* @var Mailgun |
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*/ |
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protected $mailgunClient; |
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/** |
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* {@inheritdoc} |
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*/ |
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public function __construct() |
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{ |
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$config = $this->config(); |
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$this->setMailgunClient(new Mailgun( |
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$config->api_key, |
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$config->api_endpoint, |
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$config->api_version, |
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$config->api_ssl |
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)); |
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} |
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/** |
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* @param Mailgun $client |
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* @return self |
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*/ |
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public function setMailgunClient(Mailgun $client) |
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{ |
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$this->mailgunClient = $client; |
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return $this; |
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} |
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/** |
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* @return Mailgun |
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*/ |
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public function getMailgunClient() |
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{ |
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return $this->mailgunClient; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function sendPlain($to, $from, $subject, $plainContent, $attachments = [], $headers = []) |
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{ |
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$this->sendMessage($to, $from, $subject, $htmlContent = '', $plainContent, $attachments, $headers); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function sendHTML($to, $from, $subject, $htmlContent, $attachments = [], $headers = [], $plainContent = '') |
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{ |
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$this->sendMessage($to, $from, $subject, $htmlContent, $plainContent, $attachments, $headers); |
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} |
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/** |
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* @param string $to |
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* @param string $from |
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* @param string $subject |
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* @param string $content |
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* @param string $plainContent |
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* @param array $attachments |
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* @param array $headers |
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*/ |
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protected function sendMessage($to, $from, $subject, $content, $plainContent, $attachments, $headers) |
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{ |
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$client = $this->getMailgunClient(); |
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$messageBuilder = $client->MessageBuilder(); |
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$this->buildMessage($messageBuilder, $to, $from, $subject, $content, $plainContent, $headers); |
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if (!empty($attachments)) { |
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$attachments = $this->prepareAttachments($attachments); |
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} |
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try { |
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$client->sendMessage($this->config()->api_domain, $messageBuilder->getMessage(), $attachments); |
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} catch (\Exception $e) { |
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// Close and remove any temp files created for attachments, then let the exception bubble up |
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$this->closeTempFileHandles(); |
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throw $e; |
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} |
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$this->closeTempFileHandles(); |
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} |
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/** |
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* @param MessageBuilder $builder |
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* @param string $to |
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* @param string $from |
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* @param string $subject |
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* @param string $content |
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* @param string $plainContent |
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* @param array $headers |
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*/ |
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protected function buildMessage(MessageBuilder $builder, $to, $from, $subject, $content, $plainContent, $headers) |
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{ |
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// Add base info |
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$builder->addToRecipient($to); |
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$builder->setFromAddress($from); |
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$builder->setSubject($subject); |
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// HTML content (if not empty) |
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if ($content) { |
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$builder->setHtmlBody($content); |
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} |
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// Plain text content (if not empty) |
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if ($plainContent) { |
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$builder->setTextBody($plainContent); |
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} |
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// Parse Cc & Bcc headers out if they're set |
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if (isset($headers['Cc'])) { |
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foreach (explode(', ', $headers['Cc']) as $ccAddress) { |
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$builder->addCcRecipient($ccAddress); |
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} |
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unset($headers['Cc']); |
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} |
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if (isset($headers['Bcc'])) { |
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foreach (explode(', ', $headers['Bcc']) as $bccAddress) { |
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$builder->addBccRecipient($bccAddress); |
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} |
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unset($headers['Bcc']); |
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} |
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// Add remaining custom headers |
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foreach ($headers as $name => $data) { |
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$builder->addCustomHeader($name, $data); |
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} |
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} |
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/** |
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* Prepare attachments for sending. SilverStripe extracts the content and |
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* passes that to the mailer, so to save encoding it we just write them all |
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* to individual files and let Mailgun deal with the rest. |
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* |
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* @todo Can we handle this better? |
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* @param array $attachments |
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* @return array |
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*/ |
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protected function prepareAttachments(array $attachments) |
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{ |
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$prepared = []; |
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foreach ($attachments as $attachment) { |
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$tempFile = $this->writeToTempFile($attachment['contents']); |
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$prepared[] = [ |
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'filePath' => $tempFile, |
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'remoteName' => $attachment['filename'] |
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]; |
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} |
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return ['attachment' => $prepared]; |
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} |
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/** |
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* @param string $contents |
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* @return string |
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*/ |
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protected function writeToTempFile($contents) |
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{ |
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$tempFile = tempnam(sys_get_temp_dir(), 'SS_MG_TMP'); |
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$fileHandle = fopen($tempFile, 'r+'); |
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fwrite($fileHandle, $contents); |
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$this->tempFileHandles[] = [ |
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'handle' => $fileHandle, |
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'path' => $tempFile |
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]; |
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return $tempFile; |
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} |
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/** |
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* @return void |
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*/ |
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protected function closeTempFileHandles() |
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{ |
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foreach ($this->tempFileHandles as $key => $data) { |
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fclose($data['handle']); |
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unlink($data['path']); |
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unset($this->tempFileHandles[$key]); |
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} |
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} |
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} |
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kinglozzer /
silverstripe-mailgunner
