Issue-85: Fixed attachment not working issue

Signed-off-by: sergiu <sergiubota@rospace.com>

Author: SergiuBota1

src/Service/LogService.php

@@ -4,6 +4,7 @@
 
 namespace Dot\Mail\Service;
 
+use DateTimeImmutable;
 use Dot\Mail\Email;
 
 use function date;
@@ -56,7 +57,9 @@ public function sent(Email $message): false|int|null
             'cc'      => $this->extractAddresses($message->getCc()),
             'bcc'     => $this->extractAddresses($message->getBcc()),
         ];
-        $data = sprintf('[%s]: %s' . PHP_EOL, date('Y-m-d H:i:s'), json_encode($data));
+
+        $date = new DateTimeImmutable();
+        $data = sprintf('[%s]: %s' . PHP_EOL, $date->format('Y-m-d H:i:s'), json_encode($data));
 
         /**
          * Write the log data and return the result

src/Service/MailService.php

@@ -61,6 +61,7 @@ public function send(): ResultInterface
             //attach files before sending
             $this->attachFiles();
             $this->getTransport()->send($this->getMessage());
+            $this->getMessage()->setBody(null);
 
             $this->getEventManager()->triggerEvent($this->createMailEvent(MailEvent::EVENT_MAIL_POST_SEND, $result));
         } catch (Exception $e) {
@@ -102,7 +103,7 @@ public function attachFiles(): false|Email
                 continue;
             }
             $basename     = is_string($key) ? $key : basename($attachment);
-            $attachedFile = new DataPart($attachment, $basename, null);
+            $attachedFile = new DataPart(fopen($attachment, 'r'), $basename);
             $mimeMessage  = new MixedPart($mimeMessage, $attachedFile);
 
             $this->message->setBody($mimeMessage);