1 files changed, 22 insertions, 4 deletions
diff --git a/src/Monolog/Handler/MailHandler.php b/src/Monolog/Handler/MailHandler.php
index 9e23283..634fbc1 100644
--- a/src/Monolog/Handler/MailHandler.php
+++ b/src/Monolog/Handler/MailHandler.php
@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /*
  * This file is part of the Monolog package.
@@ -11,6 +11,9 @@
 
 namespace Monolog\Handler;
 
+use Monolog\Formatter\FormatterInterface;
+use Monolog\Formatter\HtmlFormatter;
+
 /**
  * Base class for all mail handlers
  *
@@ -23,7 +26,7 @@ abstract class MailHandler extends AbstractProcessingHandler
      */
     public function handleBatch(array $records)
     {
-        $messages = array();
+        $messages = [];
 
         foreach ($records as $record) {
             if ($record['level'] < $this->level) {
@@ -43,14 +46,14 @@ abstract class MailHandler extends AbstractProcessingHandler
      * @param string $content formatted email body to be sent
      * @param array  $records the array of log records that formed this content
      */
-    abstract protected function send($content, array $records);
+    abstract protected function send(string $content, array $records);
 
     /**
      * {@inheritdoc}
      */
     protected function write(array $record)
     {
-        $this->send((string) $record['formatted'], array($record));
+        $this->send((string) $record['formatted'], [$record]);
     }
 
     protected function getHighestRecord(array $records)
@@ -64,4 +67,19 @@ abstract class MailHandler extends AbstractProcessingHandler
 
         return $highestRecord;
     }
+
+    protected function isHtmlBody($body)
+    {
+        return substr($body, 0, 1) === '<';
+    }
+
+    /**
+     * Gets the default formatter.
+     *
+     * @return FormatterInterface
+     */
+    protected function getDefaultFormatter(): FormatterInterface
+    {
+        return new HtmlFormatter();
+    }
 }