The following code does different things depending on the browser.

<?php
     header ("location: mailto:geoff@1ontheweb.net?subject=Email test");
  header ("Refresh: 2; URL=http://1ontheweb.net/index.html");
?>

In Firefox: Email client is activated and browser redirects to page.

In Opera: Email client is activated and browser stays on current page.

In IE: Email client is activated and browser has blank page. Actually it has the php page but of course there is nothing to see.

What do I need to do to get a consistent response?

To me, those look like conflicting headers ... which is, I think, why it's inconsistant.  To get it to behave consistantly, have it do one thing or the other ... not both.  

Both are acceptable headers in their own right.

The question has to be; how do you send two headers from the same script and have them treated as if they were nothing to do with each other?

I.e., in pseudo code

Here's header one
I'm finished
Here's header two

No ... I mean are you allowed to send out a refresh along with a location?  Aren't they mutally exclusive?   I've on an "icky" connection and away from teh revelevant books so may be talking through my hat ....

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