Thanks for all your help. Unfortunately I've just done something stupid and I have over-written the contacus.php file that you edited. I wasn't aware that it had changed. Would you please upload it again so that I can back it up properly. Also would you please retest the Form to see that everything is still working.
Sorry for being so clumsy.
Please note that I use this Form to collect data on many of the other pages. They also require updating so please advise me of how to do this or if you're feeling extremely helpful I would appreciate it if you would update them and then test that these Forms are working properly as well. They are currently sending all of the data to the nominated email address but the Thank You page is not loading as was/is the case with contactus.php.
Peter de Salis