diff --git a/Classes/Form/NodeExpansion/FieldInformation.php b/Classes/Form/NodeExpansion/FieldInformation.php
deleted file mode 100644
index 08a44f250a3b1223c8df643ccf48984f4b5fa2da..0000000000000000000000000000000000000000
--- a/Classes/Form/NodeExpansion/FieldInformation.php
+++ /dev/null
@@ -1,81 +0,0 @@
-<?php
-
-namespace SGalinski\SgMail\Form\NodeExpansion;
-
-/***************************************************************
- *  Copyright notice
- *
- *  (c) sgalinski Internet Services (https://www.sgalinski.de)
- *
- *  All rights reserved
- *
- *  This script is part of the TYPO3 project. The TYPO3 project is
- *  free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 3 of the License, or
- *  (at your option) any later version.
- *
- *  The GNU General Public License can be found at
- *  http://www.gnu.org/copyleft/gpl.html.
- *
- *  This script is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  This copyright notice MUST APPEAR in all copies of the script!
- ***************************************************************/
-
-use TYPO3\CMS\Backend\Form\AbstractNode;
-use TYPO3\CMS\Core\Utility\GeneralUtility;
-use TYPO3\CMS\Extbase\Utility\LocalizationUtility;
-
-/**
- * Renders additional TCA field information.
- */
-class FieldInformation extends AbstractNode {
-
-	/**
-	 * @return array Result array
-	 */
-	public function render(): array {
-		$result = $this->initializeResultArray();
-		$options = $this->data['renderData']['fieldInformationOptions']
-			?? $this->data['renderData']['fieldWizardOptions'];
-
-		if (
-			!isset($options['text'])
-			&& (!isset($options['parentFields'], $options['parentTable'], $options['parentUidField']))
-		) {
-			return $result;
-		}
-
-		$text = \trim($options['text'] ?? '');
-
-		if ($text === '') {
-			return $result;
-		}
-
-		if (\strpos($text, 'LLL') === 0) {
-			$text = LocalizationUtility::translate($text);
-		}
-
-		$tagOpen = '<span>';
-		$tagClose = '</span>';
-
-		if (isset($options['tag'])) {
-			$tag = \trim(\str_replace(['<', '>'], '', $options['tag']));
-			$tagSplit = GeneralUtility::trimExplode(' ', $tag);
-			$tagName = $tagSplit[0];
-
-			if ($tagName !== '') {
-				$tagOpen = '<' . $tag . '>';
-				$tagClose = '</' . $tagName . '>';
-			}
-		}
-
-		$result['html'] = '<div>' . $tagOpen . $text . $tagClose . '</div>';
-
-		return $result;
-	}
-}
diff --git a/Classes/Service/MailTemplateService.php b/Classes/Service/MailTemplateService.php
index 3f8ae42f1a4a035558f0a0ae957594ab5e59e340..9bf4ef2a3454c5e9a6a0f3ab6d0312ae2365524f 100644
--- a/Classes/Service/MailTemplateService.php
+++ b/Classes/Service/MailTemplateService.php
@@ -223,6 +223,16 @@ class MailTemplateService {
 	 */
 	private $subjectToSend;
 
+	/*
+	 * @var string
+	 */
+	private $defaultFromAddress;
+
+	/**
+	 * @var string
+	 */
+	private $defaultFromName;
+
 	/**
 	 * @return string
 	 */
@@ -335,18 +345,18 @@ class MailTemplateService {
 		// use defaultMailFromAddress if it is provided in LocalConfiguration.php; use the sg_mail TS setting as fallback
 		if (\filter_var($GLOBALS['TYPO3_CONF_VARS']['MAIL']['defaultMailFromAddress'], FILTER_VALIDATE_EMAIL)) {
 			$this->fromAddress = $GLOBALS['TYPO3_CONF_VARS']['MAIL']['defaultMailFromAddress'];
+			$this->defaultFromAddress = $GLOBALS['TYPO3_CONF_VARS']['MAIL']['defaultMailFromAddress'];
+		} else if (!\filter_var($tsSettings['mail']['default']['from'], FILTER_VALIDATE_EMAIL)) {
+			$this->fromAddress = 'noreply@example.org';
+			$this->defaultFromAddress = 'noreply@example.org';
 		} else {
 			$this->fromAddress = $tsSettings['mail']['default']['from'];
-
-			if (!\filter_var($tsSettings['mail']['default']['from'], FILTER_VALIDATE_EMAIL)) {
-				$this->fromAddress = 'noreply@example.org';
-			} else {
-				$this->fromAddress = $tsSettings['mail']['default']['from'];
-			}
+			$this->defaultFromAddress = $tsSettings['mail']['default']['from'];
 		}
 
 		if ($GLOBALS['TYPO3_CONF_VARS']['MAIL']['defaultMailFromName']) {
 			$this->fromName = $GLOBALS['TYPO3_CONF_VARS']['MAIL']['defaultMailFromName'];
+			$this->defaultFromName = $GLOBALS['TYPO3_CONF_VARS']['MAIL']['defaultMailFromName'];
 		}
 
 		$this->mailMessage->setFrom($this->fromAddress, $this->fromName);
@@ -573,6 +583,8 @@ class MailTemplateService {
 	}
 
 	/**
+	 * IMPORTANT: make sure to set $this->>ignoreMailQueue(TRUE), if you're using this method to add an attachment!
+	 * Otherwise the attachment is ignored when sending the mail via mail queue.
 	 * @param Swift_OutputByteStream $data
 	 * @param string $filename
 	 * @param string $contentType
@@ -971,20 +983,24 @@ class MailTemplateService {
 		//TODO: is this object even in use somewhere?
 		$this->mailMessage->setSubject($subject);
 
-		if ($this->fromAddress === '') {
+		if ($this->fromAddress === $this->defaultFromAddress) {
 			$fromMail = $this->parseMarkers(
 				empty($this->overwrittenFromMail) && $template ? $template->getFromMail() : $this->overwrittenFromMail,
 				$emailView
 			);
-			$this->setFromAddress($fromMail);
+			if ($fromMail) { // we don't want to override the default in that case
+				$this->setFromAddress($fromMail);
+			}
 		}
 
-		if ($this->fromName === '') {
+		if ($this->fromName === $this->defaultFromName) {
 			$fromName = $this->parseMarkers(
 				(empty($this->overwrittenFromName) && $template ? $template->getFromName() : $this->overwrittenFromName),
 				$emailView
 			);
-			$this->setFromName($fromName);
+			if ($fromName) { // we don't want to override the default if this value is empty here
+				$this->setFromName($fromName);
+			}
 		}
 
 		if ($this->replyToAddress === '') {
diff --git a/Configuration/TCA/tx_sgmail_domain_model_layout.php b/Configuration/TCA/tx_sgmail_domain_model_layout.php
index 53127a061dd471cd6056f83afa8ffd4dc72f39de..363da6e64aaf0a9ed736216ea8fe7b97ff248826 100644
--- a/Configuration/TCA/tx_sgmail_domain_model_layout.php
+++ b/Configuration/TCA/tx_sgmail_domain_model_layout.php
@@ -126,17 +126,10 @@ return [
 		'content' => [
 			'exclude' => TRUE,
 			'label' => 'LLL:EXT:sg_mail/Resources/Private/Language/locallang_db.xlf:tx_sgmail_domain_model_layout.content',
+			'description' => 'LLL:EXT:sg_mail/Resources/Private/Language/locallang_db.xlf:tx_sgmail_domain_model_layout.content.info',
 			'config' => [
 				'type' => 'text',
-				'renderType' => 't3editor',
-				'fieldInformation' => [
-					'info' => [
-						'renderType' => 'sgMailFieldInformation',
-						'options' => [
-							'text' => 'LLL:EXT:sg_mail/Resources/Private/Language/locallang_db.xlf:tx_sgmail_domain_model_layout.content.info'
-						]
-					],
-				],
+				'renderType' => 't3editor'
 			],
 		],
 	]
diff --git a/composer.json b/composer.json
index 885564b3a71e74df85a70f243f820403204cefa7..47c32d5380261b30df014f4f5a8b3830a94b8c83 100644
--- a/composer.json
+++ b/composer.json
@@ -6,7 +6,7 @@
     "license": [
         "GPL-2.0-or-later"
     ],
-    "version": "5.5.2",
+    "version": "5.5.3",
     "repositories": [
         {
             "type": "composer",
diff --git a/ext_emconf.php b/ext_emconf.php
index 4ededb75dd39fdd7a931a1f13d576b37dd05bfe5..73ef5b9a1ddfc8c4cb111f93a79966e2119e6d19 100644
--- a/ext_emconf.php
+++ b/ext_emconf.php
@@ -8,7 +8,7 @@ $EM_CONF['sg_mail'] = [
 	'title' => 'Mail Templates',
 	'description' => 'Mail Templates',
 	'category' => 'module',
-	'version' => '5.5.2',
+	'version' => '5.5.3',
 	'state' => 'stable',
 	'uploadfolder' => FALSE,
 	'createDirs' => '',
diff --git a/ext_localconf.php b/ext_localconf.php
index a78784e2f1c4a62f30752da2f80344fb616c4e72..106edb59ffc7bfbb2f4f6038676112e50a870b18 100644
--- a/ext_localconf.php
+++ b/ext_localconf.php
@@ -51,13 +51,6 @@ call_user_func(
 			'className' => \SGalinski\SgMail\XClass\Form\FormManagerController::class,
 		];
 
-		// Register FormEngine node type resolvers
-		$GLOBALS['TYPO3_CONF_VARS']['SYS']['formEngine']['nodeRegistry']['sgMailFieldInformation'] = [
-			'nodeName' => 'sgMailFieldInformation',
-			'priority' => 10,
-			'class' => \SGalinski\SgMail\Form\NodeExpansion\FieldInformation::class,
-		];
-
 		// Datamap process hook
 		$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['t3lib/class.t3lib_tcemain.php']['processDatamapClass'][] = \SGalinski\SgMail\Hooks\ProcessDatamap::class;