[html] Is there an equivalent of CSS max-width that works in HTML emails?

I'm trying to create an HTML email that will display properly in all widely used email clients. I'm wrapping the whole email in a table, and I'd like it to have a width that is up to 98% of the available width, but no greater than 800 pixels. Like this: <table style="width:98%; max-width:800px;">

But I'm not doing it that way, since according to this Outlook 2007 does not support the CSS width property.

Instead, I'm doing this: <table width="98%">

Is there any way to also set a max-width without relying on CSS?

Bit late to the party, but this will get it done. I left the example at 600, as that is what most people will use:

Similar to Shay's example except this also includes max-width to work on the rest of the clients that do have support, as well as a second method to prevent the expansion (media query) which is needed for Outlook '11.

In the head:

  <style type="text/css">
    @media only screen and (min-width: 600px) { .maxW { width:600px !important; } }
  </style>

In the body:

<!--[if (gte mso 9)|(IE)]><table width="600" align="center" cellpadding="0" cellspacing="0" border="0"><tr><td><![endif]-->
<div class="maxW" style="max-width:600px;">

<table width="100%" border="0" cellpadding="0" cellspacing="0" bgcolor="#FFFFFF">
  <tr>
    <td>
main content here
    </td>
  </tr>
</table>

</div>
<!--[if (gte mso 9)|(IE)]></td></tr></table><![endif]-->

Here is another example of this in use: Responsive order confirmation emails for mobile devices?

There is a trick you can do for Outlook 2007 using conditional html comments.
The code below will make sure that Outlook table is 800px wide, its not max-width but it works better than letting the table span across the entire window.

<!--[if gte mso 9]>
<style>
#tableForOutlook {
  width:800px;
}
</style>
<![endif]-->

<table style="width:98%;max-width:800px">
<!--[if gte mso 9]>
  <table id="tableForOutlook"><tr><td>
<![endif]-->
    <tr><td>
    [Your Content Goes Here]
    </td></tr>
<!--[if gte mso 9]>
  </td></tr></table>
<![endif]-->
<table>

The short answer: no.

The long answer:

Fixed formats work better for HTML emails. In my experience you're best off pretending it's 1999 when it comes to HTML emails. Be explicit and use HTML attributes (width="650") where ever possible in your table definitions, not CSS (style="width:650px"). Use fixed widths, no percentages. A table width of 650 pixels wide is a safe bet. Use inline CSS to set text properties.

It's not a matter of what works in "HTML emails", but rather the plethora of email clients and their limited (and sometimes deliberately so in the case of Gmail, Hotmail etc) ability to render HTML.

This is the solution that worked for me

https://gist.github.com/elidickinson/5525752#gistcomment-1649300, thanks to @philipp-klinz

<table cellpadding="0" cellspacing="0" border="0" style="padding:0px;margin:0px;width:100%;">
    <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>