Complications when sending HTML email

Best group member, I am sending HTML email with PHP. I use the example code in the manual to try, and the email is sent. However, it is not decoded correctly in my Outlook. I checked thru webmail clients, and then it work. I thought it was my Outlook that was not correct, but I am receiving HTML emails from other sources that are displayed correctly. In the bottom I have the email that is sent to me, it is displayed like this in Outlook. Is there maybe something I have to add in the header to get it to work with Outlook? Cheers, Peter -----Original Message----- From: Sent: Tuesday, February 14, 2006 11:31 AM Subject: Birthday Reminders for August Content-type: text/html; charset=iso-8859-1 To: Peter <peter@lauri.se> From: Testserver <robot@trydws.com> <html> <head> <title>Birthday Reminders for August</title> </head> <body> <p>Here are the birthdays upcoming in August!</p> <table> <tr> <th>Person</th><th>Day</th><th>Month</th><th>Year</th> </tr> <tr> <td>Joe</td><td>3rd</td><td>August</td><td>1970</td> </tr> <tr> <td>Sally</td><td>17th</td><td>August</td><td>1973</td> </tr> </table> </body> </html>