[BUGFIX] Remove extbase debugger markup in MailFactory.php

There is the rare chance that some extbase debugger code is saved
in the database in the body field of mails. Switching to another
function solves the issue.

Related in2code-pro/powermail#3
Related #897
Fixes #920

Author: mschwemer

Classes/Domain/Factory/MailFactory.php

@@ -11,7 +11,7 @@
 use In2code\Powermail\Utility\SessionUtility;
 use TYPO3\CMS\Core\Configuration\Exception\ExtensionConfigurationExtensionNotConfiguredException;
 use TYPO3\CMS\Core\Configuration\Exception\ExtensionConfigurationPathDoesNotExistException;
-use TYPO3\CMS\Core\Utility\DebugUtility;
+use TYPO3\CMS\Core\Utility\ArrayUtility;
 use TYPO3\CMS\Core\Utility\GeneralUtility;
 use TYPO3\CMS\Extbase\Object\Exception;
 use TYPO3\CMS\Extbase\SignalSlot\Exception\InvalidSlotException;
@@ -42,7 +42,7 @@ public function prepareMailForPersistence(Mail $mail, array $settings): void
             ->setSenderName($mailRepository->getSenderNameFromArguments($mail))
             ->setSubject($settings['receiver']['subject'])
             ->setReceiverMail($settings['receiver']['email'])
-            ->setBody(DebugUtility::viewArray($mailRepository->getVariablesWithMarkersFromMail($mail)))
+            ->setBody(ArrayUtility::arrayExport($mailRepository->getVariablesWithMarkersFromMail($mail)))
             ->setSpamFactor(SessionUtility::getSpamFactorFromSession())
             ->setTime((time() - SessionUtility::getFormStartFromSession($mail->getForm()->getUid(), $settings)))
             ->setUserAgent(GeneralUtility::getIndpEnv('HTTP_USER_AGENT'))