Aspiring to create automated emails upon user registration on my website, the aesthetic appeal of these emails is crucial to me.
I have meticulously crafted an email template using HTML. You can view a snapshot here: https://i.sstatic.net/MpjfP.png
However, the rendition in Outlook post-transmission through the server presents itself like this: https://i.sstatic.net/wrl2n.png
This misalignment is quite evident. While I am aware that diverse email clients interpret HTML and CSS differently, what would be the optimal approach to ensure compatibility across a wide range of clients?
This excerpt showcases the current PHP Mail function code:
<html>
<style>
</style>
<body style='background-color: #b5b5b5; margin: 0; padding: 0;'>
<center>
<div style='max-width: 600px; background-color: #5a5a5a; padding: 20px; margin-top: 30px;'>
<img style='height: 30px; margin: 20px;' src='http://favourite.es/icon/system/branding.png'>
</div>
<div style='max-width: 600px;
background-color: #e8e8e8; padding: 20px; color: #222222; font-family: Roboto, sans-serif;'>
<p style='font-size: 20px;'>Welcome to Favourite.es!</p>
<p>Hi $newFirstname, welcome to Favourite.es,<br>your new personalised homepage for modern browsers.</p>
<p>Thank you for registering.<br>Your account PIN is: $pin</p>
<p>Remember to keep your PIN a secret, anyone who has your PIN can view and edit your Tiles.</p>
<center>
<br>
<p style='font-size: 13px; color: #727070;'>If you have any questions, contact us at <a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="422a272e2e2d022423342d37302b36276c2731">[email protected]</a><br>You are receiving this email because you registered at favourite.es</p>
</center>
</div>
<div style='max-width: 600px;
background-color: #5a5a5a;
padding: 20px;'>
<img style='height: 15px;
display: inline-block;' src='http://favourite.es/icon/system/splycdsquare.png'>
<img style='height: 15px;
display: inline-block;' src='http://favourite.es/icon/system/branding.png'>
</div>
</center>
</body>
Opting for inline CSS seemed most practical to facilitate mail client interpretation.