HTML mail table max-width

[Costas]

Diodeus says - Fixed formats work better for HTML emails. In my experience you're best off pretending it's 1999 when it comes to HTML emails.

<!-- src - https://stackoverflow.com/a/37198052 -->
<table cellpadding="0" cellspacing="0" border="0" style="padding:0px;margin:0px;width:50%;">
    <tr><td colspan="3" style="padding:0px;margin:0px;font-size:20px;height:20px;" height="20">&nbsp;</td></tr>
     <tr>
        <td style="padding:0px;margin:0px;">&nbsp;</td>
        <td style="padding:0px;margin:0px;" width="560"><!-- max width goes here -->
 
             <!-- PLACE CONTENT HERE -->
 
        </td>
        <td style="padding:0px;margin:0px;">&nbsp;</td>
    </tr>
    <tr><td colspan="3" style="padding:0px;margin:0px;font-size:20px;height:20px;" height="20">&nbsp;</td></tr>
</table>