diff --git a/.gitignore b/.gitignore
index feedc7b..e69de29 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +0,0 @@
-WG Neue Server spannendes Know-how Der Thomas-Krenn-Newsletter im Mai.msg
\ No newline at end of file
diff --git a/WG Neue Server spannendes Know-how Der Thomas-Krenn-Newsletter im Mai.msg b/WG Neue Server spannendes Know-how Der Thomas-Krenn-Newsletter im Mai.msg
deleted file mode 100644
index 5da9414..0000000
Binary files a/WG Neue Server spannendes Know-how Der Thomas-Krenn-Newsletter im Mai.msg and /dev/null differ
diff --git a/index.php b/index.php
index a5e9ad8..303f146 100644
--- a/index.php
+++ b/index.php
@@ -339,33 +339,18 @@ function buildNewsletterHtml(array $config, array $articles, string $periodLabel
 
     $replyEmail = trim((string)($config['reply_to'] ?: $config['from_email']));
     $replyHref = 'mailto:' . $replyEmail;
-
     $summaryText = $count === 1
         ? 'Im ' . h($periodLabel) . ' wurde 1 neuer Wiki-Artikel veröffentlicht.'
         : 'Im ' . h($periodLabel) . ' wurden ' . $count . ' neue Wiki-Artikel veröffentlicht.';
 
-    $testBadge = $isTest
-        ? '<tr>
-             <td style="padding:0 24px 12px 24px;" class="mobile-padding">
-               <table role="presentation" border="0" cellspacing="0" cellpadding="0">
-                 <tr>
-                   <td bgcolor="#fff3cd" style="background-color:#fff3cd;border:1px solid #f4d58a;padding:6px 10px;font-family:Arial,Helvetica,sans-serif;font-size:11px;line-height:15px;font-weight:700;color:#7a5200;">
-                     TESTVERSAND
-                   </td>
-                 </tr>
-               </table>
-             </td>
-           </tr>'
-        : '';
-
     $articleRows = '';
     if ($count === 0) {
         $articleRows = '
           <tr>
-            <td style="padding:0 24px 18px 24px;" class="mobile-padding">
-              <table role="presentation" width="100%" border="0" cellspacing="0" cellpadding="0" style="width:100%;border:1px solid #d7d7d7;background:#ffffff;">
+            <td style="padding:0 26px 18px 26px;" class="mobile-padding">
+              <table role="presentation" width="100%" border="0" cellspacing="0" cellpadding="0" style="width:100%;border:1px solid #d9dfe7;background:#ffffff;">
                 <tr>
-                  <td style="padding:18px;font-family:Arial,Helvetica,sans-serif;font-size:14px;line-height:21px;color:#333333;">
+                  <td style="padding:18px;font-family:Arial,Helvetica,sans-serif;font-size:14px;line-height:22px;color:#2b3340;">
                     Für diesen Zeitraum wurden keine neuen Artikel gefunden.
                   </td>
                 </tr>
@@ -376,29 +361,29 @@ function buildNewsletterHtml(array $config, array $articles, string $periodLabel
         foreach ($articles as $article) {
             $articleRows .= '
           <tr>
-            <td style="padding:0 24px 18px 24px;" class="mobile-padding">
-              <table role="presentation" width="100%" border="0" cellspacing="0" cellpadding="0" style="width:100%;background:#ffffff;">
+            <td style="padding:0 26px 16px 26px;" class="mobile-padding">
+              <table role="presentation" width="100%" border="0" cellspacing="0" cellpadding="0" style="width:100%;background:#ffffff;border:1px solid #e2e7ee;border-left:4px solid #ef7d00;">
                 <tr>
-                  <td style="padding:0 0 5px 0;font-family:Arial,Helvetica,sans-serif;font-size:12px;line-height:17px;color:#595959;">
+                  <td style="padding:14px 16px 0 16px;font-family:Arial,Helvetica,sans-serif;font-size:12px;line-height:17px;color:#5c6675;">
                     Thomas-Krenn-Wiki
                   </td>
                 </tr>
                 <tr>
-                  <td style="padding:0 0 5px 0;font-family:Arial,Helvetica,sans-serif;font-size:22px;line-height:28px;font-weight:700;color:#ef7d00;">
+                  <td style="padding:4px 16px 6px 16px;font-family:Arial,Helvetica,sans-serif;font-size:21px;line-height:28px;font-weight:700;color:#ef7d00;">
                     <a href="' . h($article['url']) . '" target="_blank" style="color:#ef7d00;text-decoration:none;">' . h($article['title']) . '</a>
                   </td>
                 </tr>
                 <tr>
-                  <td style="padding:0 0 10px 0;font-family:Arial,Helvetica,sans-serif;font-size:14px;line-height:22px;color:#2e2e2e;">
+                  <td style="padding:0 16px 12px 16px;font-family:Arial,Helvetica,sans-serif;font-size:14px;line-height:21px;color:#313844;">
                     Veröffentlicht am ' . h($article['date_de']) . ' von ' . h($article['author']) . '.
                   </td>
                 </tr>
                 <tr>
-                  <td style="padding:0;">
+                  <td style="padding:0 16px 15px 16px;">
                     <table role="presentation" border="0" cellspacing="0" cellpadding="0">
                       <tr>
                         <td bgcolor="#ef7d00" style="background:#ef7d00;">
-                          <a href="' . h($article['url']) . '" target="_blank" style="display:inline-block;padding:8px 14px;font-family:Arial,Helvetica,sans-serif;font-size:13px;line-height:16px;color:#ffffff;text-decoration:none;">Jetzt Artikel lesen</a>
+                          <a href="' . h($article['url']) . '" target="_blank" style="display:inline-block;padding:8px 14px;font-family:Arial,Helvetica,sans-serif;font-size:13px;line-height:16px;font-weight:700;color:#ffffff;text-decoration:none;">Jetzt Artikel lesen</a>
                         </td>
                       </tr>
                     </table>
@@ -410,6 +395,20 @@ function buildNewsletterHtml(array $config, array $articles, string $periodLabel
         }
     }
 
+    $testBadge = $isTest
+        ? '<tr>
+             <td style="padding:0 26px 12px 26px;" class="mobile-padding">
+               <table role="presentation" border="0" cellspacing="0" cellpadding="0">
+                 <tr>
+                   <td bgcolor="#fff3cd" style="background:#fff3cd;border:1px solid #f3d38a;padding:6px 10px;font-family:Arial,Helvetica,sans-serif;font-size:11px;line-height:14px;font-weight:700;color:#7a5200;">
+                     TESTVERSAND
+                   </td>
+                 </tr>
+               </table>
+             </td>
+           </tr>'
+        : '';
+
     $unsubscribeFooter = '';
     $unsubscribeUrl = trim((string)($config['unsubscribe_url'] ?? ''));
     if ($unsubscribeUrl !== '' && $unsubscribeUrl !== '#' && filter_var($unsubscribeUrl, FILTER_VALIDATE_URL)) {
@@ -424,58 +423,57 @@ function buildNewsletterHtml(array $config, array $articles, string $periodLabel
   <meta http-equiv="X-UA-Compatible" content="IE=edge">
   <title>Thomas-Krenn Wiki Newsletter</title>
   <style type="text/css">
-    html, body { margin:0 !important; padding:0 !important; width:100% !important; background:#e6e6e6; }
+    html, body { margin:0 !important; padding:0 !important; width:100% !important; background:#dadada; }
     table, td { border-collapse:collapse; mso-table-lspace:0pt; mso-table-rspace:0pt; }
     img { border:0; outline:none; text-decoration:none; -ms-interpolation-mode:bicubic; display:block; }
     a { text-decoration:none; }
     * { -ms-text-size-adjust:100%; -webkit-text-size-adjust:100%; }
     .preheader { display:none !important; visibility:hidden; opacity:0; color:transparent; height:0; width:0; max-height:0; max-width:0; overflow:hidden; mso-hide:all; }
-    @media only screen and (max-width: 640px) {
+    @media only screen and (max-width: 680px) {
       .email-container { width:100% !important; }
       .mobile-padding { padding-left:14px !important; padding-right:14px !important; }
-      .mobile-body { font-size:15px !important; line-height:23px !important; }
-      .mobile-title { font-size:19px !important; line-height:25px !important; }
+      .mobile-intro { font-size:16px !important; line-height:24px !important; }
     }
   </style>
 </head>
-<body style="margin:0;padding:0;background:#e6e6e6;">
+<body style="margin:0;padding:0;background:#dadada;">
   <div class="preheader">' . h($preheader) . '&nbsp;&zwnj;&nbsp;&zwnj;&nbsp;&zwnj;</div>
-  <center role="article" aria-roledescription="email" lang="de" style="width:100%;background:#e6e6e6;">
-    <table role="presentation" width="100%" border="0" cellspacing="0" cellpadding="0" bgcolor="#e6e6e6" style="width:100%;background:#e6e6e6;">
+  <center role="article" aria-roledescription="email" lang="de" style="width:100%;background:#dadada;">
+    <table role="presentation" width="100%" border="0" cellspacing="0" cellpadding="0" bgcolor="#dadada" style="width:100%;background:#dadada;">
       <tr>
-        <td align="center" style="padding:6px 8px;">
-          <table role="presentation" width="620" border="0" cellspacing="0" cellpadding="0" class="email-container" style="width:100%;max-width:620px;background:#ffffff;">
+        <td align="center" style="padding:12px 8px;">
+          <table role="presentation" width="690" border="0" cellspacing="0" cellpadding="0" class="email-container" style="width:100%;max-width:690px;background:#ffffff;">
             <tr>
-              <td align="center" style="padding:8px 20px 6px 20px;font-family:Arial,Helvetica,sans-serif;font-size:11px;line-height:15px;color:#4e4e4e;">
+              <td align="center" style="padding:10px 26px 7px 26px;font-family:Arial,Helvetica,sans-serif;font-size:12px;line-height:16px;color:#4e5561;">
                 Sollte diese E-Mail nicht einwandfrei dargestellt werden, klicken Sie bitte hier.
               </td>
             </tr>
             <tr>
-              <td align="center" style="padding:4px 20px 10px 20px;font-family:Arial,Helvetica,sans-serif;font-size:30px;line-height:32px;font-weight:700;color:#555555;">
+              <td align="center" style="padding:5px 26px 12px 26px;font-family:Arial,Helvetica,sans-serif;font-size:52px;line-height:46px;font-weight:700;color:#4c5461;letter-spacing:0.6px;">
                 THOMAS<br>KRENN
               </td>
             </tr>
             <tr>
-              <td style="padding:0 24px;" class="mobile-padding">
-                <table role="presentation" width="100%" border="0" cellspacing="0" cellpadding="0" style="width:100%;background:#142232;">
+              <td style="padding:0 26px;" class="mobile-padding">
+                <table role="presentation" width="100%" border="0" cellspacing="0" cellpadding="0" style="width:100%;background:#10233a;">
                   <tr>
-                    <td style="padding:16px 14px;font-family:Arial,Helvetica,sans-serif;color:#ffffff;">
-                      <div style="font-size:12px;line-height:16px;font-weight:700;letter-spacing:0.6px;color:#ef7d00;">NEWSLETTER</div>
-                      <div class="mobile-title" style="font-size:24px;line-height:30px;font-weight:700;color:#ffffff;">' . h($periodLabel) . '</div>
+                    <td style="padding:18px 18px 20px 18px;font-family:Arial,Helvetica,sans-serif;">
+                      <div style="font-size:30px;line-height:16px;font-weight:700;color:#ef7d00;letter-spacing:0.7px;">NEWSLETTER</div>
+                      <div style="font-size:45px;line-height:30px;font-weight:700;color:#ffffff;margin-top:6px;">' . h($periodLabel) . '</div>
                     </td>
                   </tr>
                 </table>
               </td>
             </tr>
             <tr>
-              <td style="padding:10px 24px 8px 24px;background:#f3f3f3;" class="mobile-padding">
+              <td style="padding:14px 26px 12px 26px;background:#eef0f3;" class="mobile-padding">
                 <table role="presentation" width="100%" border="0" cellspacing="0" cellpadding="0">
                   <tr>
-                    <td class="mobile-body" style="font-family:Arial,Helvetica,sans-serif;font-size:14px;line-height:21px;color:#1f1f1f;">
+                    <td class="mobile-intro" style="font-family:Arial,Helvetica,sans-serif;font-size:17px;line-height:27px;color:#1e2530;">
                       Guten Tag,<br><br>
-                      „oh mei“ sagen wir in Bayern, wenn mal was schiefgeht. In diesem Newsletter finden Sie aktuelles und kostenfreies IT-Know-how aus dem Thomas-Krenn-Wiki.
-                      <br><br>' . $summaryText . '
-                      <br><br>Viel Spaß beim Lesen wünscht<br>Ihr Team von Thomas-Krenn
+                      hier ist Ihre aktuelle Übersicht aus dem Thomas-Krenn-Wiki.<br>
+                      ' . $summaryText . '<br><br>
+                      Viel Spaß beim Lesen wünscht<br>Ihr Team von Thomas-Krenn
                     </td>
                   </tr>
                 </table>
@@ -484,10 +482,10 @@ function buildNewsletterHtml(array $config, array $articles, string $periodLabel
             ' . $testBadge . '
             ' . $articleRows . '
             <tr>
-              <td style="padding:0 24px 18px 24px;" class="mobile-padding">
-                <table role="presentation" width="100%" border="0" cellspacing="0" cellpadding="0" style="width:100%;">
+              <td style="padding:4px 26px 20px 26px;" class="mobile-padding">
+                <table role="presentation" width="100%" border="0" cellspacing="0" cellpadding="0">
                   <tr>
-                    <td style="font-family:Arial,Helvetica,sans-serif;font-size:14px;line-height:22px;color:#2e2e2e;">
+                    <td style="font-family:Arial,Helvetica,sans-serif;font-size:14px;line-height:22px;color:#2a303b;">
                       Haben Sie Fragen oder einen Themenwunsch?
                       <a href="' . h($replyHref) . '" style="color:#ef7d00;text-decoration:underline;">Kontaktieren Sie uns gerne direkt.</a>
                     </td>
@@ -496,8 +494,8 @@ function buildNewsletterHtml(array $config, array $articles, string $periodLabel
               </td>
             </tr>
             <tr>
-              <td style="background:#ececec;padding:18px 24px;text-align:center;font-family:Arial,Helvetica,sans-serif;">
-                <div style="font-size:12px;line-height:18px;color:#666666;">
+              <td style="background:#eceef1;padding:20px 26px;text-align:center;font-family:Arial,Helvetica,sans-serif;">
+                <div style="font-size:12px;line-height:20px;color:#646d7b;">
                   Tel.: +49 8551 9150 0 | Fax: +49 8551 9150 55<br>
                   <a href="https://www.thomas-krenn.com/de/wiki/Hauptseite" target="_blank" style="color:#ef7d00;text-decoration:underline;">thomas-krenn.com</a><br><br>
                   Thomas-Krenn.AG | Speltenbach-Steinäcker 1 | D-94078 Freyung
diff --git a/wiki.php b/wiki.php
index 7a14da3..ddca103 100644
--- a/wiki.php
+++ b/wiki.php
@@ -339,33 +339,18 @@ function buildNewsletterHtml(array $config, array $articles, string $periodLabel
 
     $replyEmail = trim((string)($config['reply_to'] ?: $config['from_email']));
     $replyHref = 'mailto:' . $replyEmail;
-
     $summaryText = $count === 1
         ? 'Im ' . h($periodLabel) . ' wurde 1 neuer Wiki-Artikel veröffentlicht.'
         : 'Im ' . h($periodLabel) . ' wurden ' . $count . ' neue Wiki-Artikel veröffentlicht.';
 
-    $testBadge = $isTest
-        ? '<tr>
-             <td style="padding:0 24px 12px 24px;" class="mobile-padding">
-               <table role="presentation" border="0" cellspacing="0" cellpadding="0">
-                 <tr>
-                   <td bgcolor="#fff3cd" style="background-color:#fff3cd;border:1px solid #f4d58a;padding:6px 10px;font-family:Arial,Helvetica,sans-serif;font-size:11px;line-height:15px;font-weight:700;color:#7a5200;">
-                     TESTVERSAND
-                   </td>
-                 </tr>
-               </table>
-             </td>
-           </tr>'
-        : '';
-
     $articleRows = '';
     if ($count === 0) {
         $articleRows = '
           <tr>
-            <td style="padding:0 24px 18px 24px;" class="mobile-padding">
-              <table role="presentation" width="100%" border="0" cellspacing="0" cellpadding="0" style="width:100%;border:1px solid #d7d7d7;background:#ffffff;">
+            <td style="padding:0 26px 18px 26px;" class="mobile-padding">
+              <table role="presentation" width="100%" border="0" cellspacing="0" cellpadding="0" style="width:100%;border:1px solid #d9dfe7;background:#ffffff;">
                 <tr>
-                  <td style="padding:18px;font-family:Arial,Helvetica,sans-serif;font-size:14px;line-height:21px;color:#333333;">
+                  <td style="padding:18px;font-family:Arial,Helvetica,sans-serif;font-size:14px;line-height:22px;color:#2b3340;">
                     Für diesen Zeitraum wurden keine neuen Artikel gefunden.
                   </td>
                 </tr>
@@ -376,29 +361,29 @@ function buildNewsletterHtml(array $config, array $articles, string $periodLabel
         foreach ($articles as $article) {
             $articleRows .= '
           <tr>
-            <td style="padding:0 24px 18px 24px;" class="mobile-padding">
-              <table role="presentation" width="100%" border="0" cellspacing="0" cellpadding="0" style="width:100%;background:#ffffff;">
+            <td style="padding:0 26px 16px 26px;" class="mobile-padding">
+              <table role="presentation" width="100%" border="0" cellspacing="0" cellpadding="0" style="width:100%;background:#ffffff;border:1px solid #e2e7ee;border-left:4px solid #ef7d00;">
                 <tr>
-                  <td style="padding:0 0 5px 0;font-family:Arial,Helvetica,sans-serif;font-size:12px;line-height:17px;color:#595959;">
+                  <td style="padding:14px 16px 0 16px;font-family:Arial,Helvetica,sans-serif;font-size:12px;line-height:17px;color:#5c6675;">
                     Thomas-Krenn-Wiki
                   </td>
                 </tr>
                 <tr>
-                  <td style="padding:0 0 5px 0;font-family:Arial,Helvetica,sans-serif;font-size:22px;line-height:28px;font-weight:700;color:#ef7d00;">
+                  <td style="padding:4px 16px 6px 16px;font-family:Arial,Helvetica,sans-serif;font-size:21px;line-height:28px;font-weight:700;color:#ef7d00;">
                     <a href="' . h($article['url']) . '" target="_blank" style="color:#ef7d00;text-decoration:none;">' . h($article['title']) . '</a>
                   </td>
                 </tr>
                 <tr>
-                  <td style="padding:0 0 10px 0;font-family:Arial,Helvetica,sans-serif;font-size:14px;line-height:22px;color:#2e2e2e;">
+                  <td style="padding:0 16px 12px 16px;font-family:Arial,Helvetica,sans-serif;font-size:14px;line-height:21px;color:#313844;">
                     Veröffentlicht am ' . h($article['date_de']) . ' von ' . h($article['author']) . '.
                   </td>
                 </tr>
                 <tr>
-                  <td style="padding:0;">
+                  <td style="padding:0 16px 15px 16px;">
                     <table role="presentation" border="0" cellspacing="0" cellpadding="0">
                       <tr>
                         <td bgcolor="#ef7d00" style="background:#ef7d00;">
-                          <a href="' . h($article['url']) . '" target="_blank" style="display:inline-block;padding:8px 14px;font-family:Arial,Helvetica,sans-serif;font-size:13px;line-height:16px;color:#ffffff;text-decoration:none;">Jetzt Artikel lesen</a>
+                          <a href="' . h($article['url']) . '" target="_blank" style="display:inline-block;padding:8px 14px;font-family:Arial,Helvetica,sans-serif;font-size:13px;line-height:16px;font-weight:700;color:#ffffff;text-decoration:none;">Jetzt Artikel lesen</a>
                         </td>
                       </tr>
                     </table>
@@ -410,6 +395,20 @@ function buildNewsletterHtml(array $config, array $articles, string $periodLabel
         }
     }
 
+    $testBadge = $isTest
+        ? '<tr>
+             <td style="padding:0 26px 12px 26px;" class="mobile-padding">
+               <table role="presentation" border="0" cellspacing="0" cellpadding="0">
+                 <tr>
+                   <td bgcolor="#fff3cd" style="background:#fff3cd;border:1px solid #f3d38a;padding:6px 10px;font-family:Arial,Helvetica,sans-serif;font-size:11px;line-height:14px;font-weight:700;color:#7a5200;">
+                     TESTVERSAND
+                   </td>
+                 </tr>
+               </table>
+             </td>
+           </tr>'
+        : '';
+
     $unsubscribeFooter = '';
     $unsubscribeUrl = trim((string)($config['unsubscribe_url'] ?? ''));
     if ($unsubscribeUrl !== '' && $unsubscribeUrl !== '#' && filter_var($unsubscribeUrl, FILTER_VALIDATE_URL)) {
@@ -424,58 +423,57 @@ function buildNewsletterHtml(array $config, array $articles, string $periodLabel
   <meta http-equiv="X-UA-Compatible" content="IE=edge">
   <title>Thomas-Krenn Wiki Newsletter</title>
   <style type="text/css">
-    html, body { margin:0 !important; padding:0 !important; width:100% !important; background:#e6e6e6; }
+    html, body { margin:0 !important; padding:0 !important; width:100% !important; background:#dadada; }
     table, td { border-collapse:collapse; mso-table-lspace:0pt; mso-table-rspace:0pt; }
     img { border:0; outline:none; text-decoration:none; -ms-interpolation-mode:bicubic; display:block; }
     a { text-decoration:none; }
     * { -ms-text-size-adjust:100%; -webkit-text-size-adjust:100%; }
     .preheader { display:none !important; visibility:hidden; opacity:0; color:transparent; height:0; width:0; max-height:0; max-width:0; overflow:hidden; mso-hide:all; }
-    @media only screen and (max-width: 640px) {
+    @media only screen and (max-width: 680px) {
       .email-container { width:100% !important; }
       .mobile-padding { padding-left:14px !important; padding-right:14px !important; }
-      .mobile-body { font-size:15px !important; line-height:23px !important; }
-      .mobile-title { font-size:19px !important; line-height:25px !important; }
+      .mobile-intro { font-size:16px !important; line-height:24px !important; }
     }
   </style>
 </head>
-<body style="margin:0;padding:0;background:#e6e6e6;">
+<body style="margin:0;padding:0;background:#dadada;">
   <div class="preheader">' . h($preheader) . '&nbsp;&zwnj;&nbsp;&zwnj;&nbsp;&zwnj;</div>
-  <center role="article" aria-roledescription="email" lang="de" style="width:100%;background:#e6e6e6;">
-    <table role="presentation" width="100%" border="0" cellspacing="0" cellpadding="0" bgcolor="#e6e6e6" style="width:100%;background:#e6e6e6;">
+  <center role="article" aria-roledescription="email" lang="de" style="width:100%;background:#dadada;">
+    <table role="presentation" width="100%" border="0" cellspacing="0" cellpadding="0" bgcolor="#dadada" style="width:100%;background:#dadada;">
       <tr>
-        <td align="center" style="padding:6px 8px;">
-          <table role="presentation" width="620" border="0" cellspacing="0" cellpadding="0" class="email-container" style="width:100%;max-width:620px;background:#ffffff;">
+        <td align="center" style="padding:12px 8px;">
+          <table role="presentation" width="690" border="0" cellspacing="0" cellpadding="0" class="email-container" style="width:100%;max-width:690px;background:#ffffff;">
             <tr>
-              <td align="center" style="padding:8px 20px 6px 20px;font-family:Arial,Helvetica,sans-serif;font-size:11px;line-height:15px;color:#4e4e4e;">
+              <td align="center" style="padding:10px 26px 7px 26px;font-family:Arial,Helvetica,sans-serif;font-size:12px;line-height:16px;color:#4e5561;">
                 Sollte diese E-Mail nicht einwandfrei dargestellt werden, klicken Sie bitte hier.
               </td>
             </tr>
             <tr>
-              <td align="center" style="padding:4px 20px 10px 20px;font-family:Arial,Helvetica,sans-serif;font-size:30px;line-height:32px;font-weight:700;color:#555555;">
+              <td align="center" style="padding:5px 26px 12px 26px;font-family:Arial,Helvetica,sans-serif;font-size:52px;line-height:46px;font-weight:700;color:#4c5461;letter-spacing:0.6px;">
                 THOMAS<br>KRENN
               </td>
             </tr>
             <tr>
-              <td style="padding:0 24px;" class="mobile-padding">
-                <table role="presentation" width="100%" border="0" cellspacing="0" cellpadding="0" style="width:100%;background:#142232;">
+              <td style="padding:0 26px;" class="mobile-padding">
+                <table role="presentation" width="100%" border="0" cellspacing="0" cellpadding="0" style="width:100%;background:#10233a;">
                   <tr>
-                    <td style="padding:16px 14px;font-family:Arial,Helvetica,sans-serif;color:#ffffff;">
-                      <div style="font-size:12px;line-height:16px;font-weight:700;letter-spacing:0.6px;color:#ef7d00;">NEWSLETTER</div>
-                      <div class="mobile-title" style="font-size:24px;line-height:30px;font-weight:700;color:#ffffff;">' . h($periodLabel) . '</div>
+                    <td style="padding:18px 18px 20px 18px;font-family:Arial,Helvetica,sans-serif;">
+                      <div style="font-size:30px;line-height:16px;font-weight:700;color:#ef7d00;letter-spacing:0.7px;">NEWSLETTER</div>
+                      <div style="font-size:45px;line-height:30px;font-weight:700;color:#ffffff;margin-top:6px;">' . h($periodLabel) . '</div>
                     </td>
                   </tr>
                 </table>
               </td>
             </tr>
             <tr>
-              <td style="padding:10px 24px 8px 24px;background:#f3f3f3;" class="mobile-padding">
+              <td style="padding:14px 26px 12px 26px;background:#eef0f3;" class="mobile-padding">
                 <table role="presentation" width="100%" border="0" cellspacing="0" cellpadding="0">
                   <tr>
-                    <td class="mobile-body" style="font-family:Arial,Helvetica,sans-serif;font-size:14px;line-height:21px;color:#1f1f1f;">
+                    <td class="mobile-intro" style="font-family:Arial,Helvetica,sans-serif;font-size:17px;line-height:27px;color:#1e2530;">
                       Guten Tag,<br><br>
-                      „oh mei“ sagen wir in Bayern, wenn mal was schiefgeht. In diesem Newsletter finden Sie aktuelles und kostenfreies IT-Know-how aus dem Thomas-Krenn-Wiki.
-                      <br><br>' . $summaryText . '
-                      <br><br>Viel Spaß beim Lesen wünscht<br>Ihr Team von Thomas-Krenn
+                      hier ist Ihre aktuelle Übersicht aus dem Thomas-Krenn-Wiki.<br>
+                      ' . $summaryText . '<br><br>
+                      Viel Spaß beim Lesen wünscht<br>Ihr Team von Thomas-Krenn
                     </td>
                   </tr>
                 </table>
@@ -484,10 +482,10 @@ function buildNewsletterHtml(array $config, array $articles, string $periodLabel
             ' . $testBadge . '
             ' . $articleRows . '
             <tr>
-              <td style="padding:0 24px 18px 24px;" class="mobile-padding">
-                <table role="presentation" width="100%" border="0" cellspacing="0" cellpadding="0" style="width:100%;">
+              <td style="padding:4px 26px 20px 26px;" class="mobile-padding">
+                <table role="presentation" width="100%" border="0" cellspacing="0" cellpadding="0">
                   <tr>
-                    <td style="font-family:Arial,Helvetica,sans-serif;font-size:14px;line-height:22px;color:#2e2e2e;">
+                    <td style="font-family:Arial,Helvetica,sans-serif;font-size:14px;line-height:22px;color:#2a303b;">
                       Haben Sie Fragen oder einen Themenwunsch?
                       <a href="' . h($replyHref) . '" style="color:#ef7d00;text-decoration:underline;">Kontaktieren Sie uns gerne direkt.</a>
                     </td>
@@ -496,8 +494,8 @@ function buildNewsletterHtml(array $config, array $articles, string $periodLabel
               </td>
             </tr>
             <tr>
-              <td style="background:#ececec;padding:18px 24px;text-align:center;font-family:Arial,Helvetica,sans-serif;">
-                <div style="font-size:12px;line-height:18px;color:#666666;">
+              <td style="background:#eceef1;padding:20px 26px;text-align:center;font-family:Arial,Helvetica,sans-serif;">
+                <div style="font-size:12px;line-height:20px;color:#646d7b;">
                   Tel.: +49 8551 9150 0 | Fax: +49 8551 9150 55<br>
                   <a href="https://www.thomas-krenn.com/de/wiki/Hauptseite" target="_blank" style="color:#ef7d00;text-decoration:underline;">thomas-krenn.com</a><br><br>
                   Thomas-Krenn.AG | Speltenbach-Steinäcker 1 | D-94078 Freyung