不知怎么的，当我从cocrete5 cms发送电子邮件时，它在gmail中的呈现不正确。它删除了一个完整的样式标签，但行为不稳定。
这是我的电子邮件模板。我用swiftmailer在mailchimp、sendgrid、phalcon框架中尝试了这个hmtl，在所有平台(gmail、safari、outlook等(中，输出都很好。
<?php
$subject = 'New registration';
/*
* HTML BODY START
*/
ob_start();
?>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta name="x-apple-disable-message-reformatting">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta http-equiv="Content-Type" content="text/html charset=UTF-8" />
</head>
<body marginwidth="0" marginheight="0" style="margin-top: 0; margin-bottom: 0; padding-top: 0; padding-bottom: 0; width: 100%; -webkit-text-size-adjust: 100%; -ms-text-size-adjust: 100%;" offset="0" topmargin="0" leftmargin="0">
<table width="100%" cellspacing="0" cellpadding="0" border="0" role="presentation" style="position: relative; opacity: 1; top: 0px; left: 0px;">
<tbody>
<tr>
<td align="center" style="background-color: #dbe5ea;padding-left: 8px;padding-right: 8px;padding-top: 32px;">
<table width="100%" cellspacing="0" cellpadding="0" border="0" role="presentation" style="max-width: 800px;margin: 0 auto;">
<tbody>
<tr>
<td align="center" style="font-family: Helvetica, Arial, sans-serif;margin-top: 0px;margin-bottom: 0px;font-size: 16px;line-height: 24px;background-color: #ffffff;border-radius: 4px 4px 0px 0px;padding-left: 16px;padding-right: 16px;padding-top: 24px;padding-bottom: 24px;">
<p style="margin-top: 0px;margin-bottom: 0px;"><a href="https://grindfit.hu/" style="text-decoration: none;outline: none;color: #126de5;">
<img src="https://grindfit.hu/application/themes/grindfit/images/logo_black.png" width="250" alt="grindfit" style="max-width: 250px;-ms-interpolation-mode: bicubic;vertical-align: middle;border: 0;line-height: 100%;height: auto;outline: none;text-decoration: none;"></a>
</p>
</td>
</tr>
</tbody>
</table>
</td>
</tr>
</tbody>
</table>
<table width="100%" cellspacing="0" cellpadding="0" border="0">
<tr>
<td align="center" style="background-color: #dbe5ea;padding-left: 8px;padding-right: 8px;">
<table width="100%" cellspacing="0" cellpadding="0" border="0" style="max-width: 800px;margin: 0 auto;">
<tr>
<td align="center" style="background-color: #ebf5fa;padding-left: 24px;padding-right: 24px;padding-top: 64px;padding-bottom: 64px;">
<div style="font-family: Helvetica, Arial, sans-serif;margin-top: 0px;margin-bottom: 0px;font-size: 19px;line-height: 28px;max-width: 584px;color: #82899a;text-align: center;">
<table cellspacing="0" cellpadding="0" border="0" style="text-align: center; margin-left: auto; margin-right: auto;">
<tr>
<td align="center" style="font-family: Helvetica, Arial, sans-serif;margin-top: 0px;margin-bottom: 0px;font-size: 16px;line-height: 24px;border: 2px solid #3797dd;border-radius: 96px;padding-left: 16px;padding-right: 16px;padding-top: 16px;padding-bottom: 16px;">
<img src="https://grindfit.hu/application/themes/grindfit/images/email/check.png" width="48" height="48" alt="" style="max-width: 48px;-ms-interpolation-mode: bicubic;vertical-align: middle;border: 0;line-height: 100%;height: auto;outline: none;text-decoration: none;" />
</td>
</tr>
<tr>
<td style="font-size: 24px; line-height: 24px; height: 24px;">
</td>
</tr>
</table>
<h2 style="font-family: Helvetica, Arial, sans-serif;font-weight: bold;margin-top: 0px;margin-bottom: 4px;color: #242b3d;font-size: 30px;line-height: 39px;">
Kérdőív feliratkozás
</h2>
</div>
</td>
</tr>
</table>
</td>
</tr>
</table>
<table width="100%" cellspacing="0" cellpadding="0" border="0" role="presentation">
<tbody>
<tr>
<td align="center" style="background-color: #dbe5ea;padding-left: 8px;padding-right: 8px;">
<table width="100%" cellspacing="0" cellpadding="0" border="0" role="presentation" style="max-width: 800px;margin: 0 auto;">
<tbody>
<tr>
<td align="center" style="background-color: #ffffff;padding-left: 24px;padding-right: 24px;padding-top: 16px;padding-bottom: 16px;">
<div style="font-family: Helvetica, Arial, sans-serif;margin-top: 0px;margin-bottom: 0px;font-size: 16px;line-height: 24px;max-width: 584px;color: #424651;text-align: center;">
<p style="margin-top: 0px;margin-bottom: 10px;">Az alábbi adatokkal kérdőívet töltöttek ki és feliratkoztak a hírlevélre.</p><br>
Név: <?php echo $name; ?> <br>
Telefonszám: <?php echo $telephone; ?> <br>
Üzenet: <?php echo $message; ?> <br>
Email: <?php echo $email; ?> <br>
</div>
</td>
</tr>
</tbody>
</table>
</td>
</tr>
</tbody>
</table>
<table width="100%" cellspacing="0" cellpadding="0" border="0" role="presentation">
<tbody>
<tr>
<td align="center" style="background-color: #dbe5ea;padding-left: 8px;padding-right: 8px;padding-bottom: 32px;">
<table width="100%" cellspacing="0" cellpadding="0" border="0" role="presentation" style="max-width: 800px;margin: 0 auto;">
<tbody>
<tr>
<td align="center" style="background-color: rgb(31, 31, 31); border-radius: 0px 0px 4px 4px; padding: 32px 24px;">
<div style="font-family: Helvetica, Arial, sans-serif; margin-top: 0px; margin-bottom: 0px; font-size: 14px; line-height: 21px; max-width: 584px; color: rgb(222, 222, 222);">
<p style="margin-top: 0px;margin-bottom: 16px;">
<a href="https://grindfit.hu/" style="text-decoration: none; outline: none; color: rgb(222, 222, 222);">
<img src="https://grindfit.hu/application/themes/grindfit/images/logo_white.png" width="200" height="76" alt="grindfit" style="max-width: 200px;-ms-interpolation-mode: bicubic;vertical-align: middle;border: 0;line-height: 100%;height: auto;outline: none;text-decoration: none;">
</a>
</p>
<p style="margin-top: 0px;margin-bottom: 16px;">
<a href="https://www.facebook.com/grindfithu/" style="text-decoration: none;outline: none;color: #ffffff;">
<img src="https://grindfit.hu/application/themes/grindfit/images/email/facebook.png" width="36" height="36" alt="Facebook" style="max-width: 36px;-ms-interpolation-mode: bicubic;vertical-align: middle;border: 0;line-height: 100%;height: auto;outline: none;text-decoration: none;">
</a>
</p>
<p style="margin-top: 0px;margin-bottom: 16px;">©2020 grindfit.hu</p>
</div>
</td>
</tr>
</tbody>
</table>
<div style="font-size: 64px; line-height: 64px; height: 64px;"> </div>
</td>
</tr>
</tbody>
</table>
</body>
</html>
<?php
$bodyHTML = ob_get_clean();
当我在gmail中查看这封电子邮件时，我上传了一张控制台的照片。我还标记了样式标签消失的地方。还有一种情况是，样式标签在那里，但在一些属性中有额外的空间，如最大宽度：1 80 px；
gmail控制台
谢谢你的帮助！
concrete5根本不涉及HTML模板。
问题是Gmail删除了大多数样式。我认为你对此无能为力。