Mail log: Formatting

src/Mail/Transport/LogTransport.php

@@ -31,11 +31,11 @@ class LogTransport extends Transport
         &$failedRecipients = null
     ): int {
         $this->logger->debug(
-            'Mail: Send mail "{title}" to "{recipients}":' . PHP_EOL . '{content}',
+            'Mail: Send mail "{title}" to "{recipients}":' . PHP_EOL . PHP_EOL . '{content}',
             [
                 'title'      => $message->getSubject(),
                 'recipients' => $this->getTo($message),
-                'content'    => (string)$message->getHeaders() . PHP_EOL . PHP_EOL . $message->toString(),
+                'content'    => $message->toString(),
             ]
         );
 

tests/Unit/Mail/Transport/LogTransportTest.php

@@ -24,12 +24,9 @@ class LogTransportTest extends TestCase
         $message->expects($this->once())
             ->method('getSubject')
             ->willReturn('Some subject');
-        $message->expects($this->once())
-            ->method('getHeaders')
-            ->willReturn('Head: er');
         $message->expects($this->once())
             ->method('toString')
-            ->willReturn('Message body');
+            ->willReturn("Head: er\n\nMessage body");
 
         $logger->expects($this->once())
             ->method('debug')