Messages to Gmail accounts not being received

Hello - I have a website running on a shared Linux box (I don't have access to the system). I have used a very simple PHP script to send a 'thank you' email to people after they submit a form. This works fine except for people using Gmail accounts, who never receive the email. Any ideas why or how I could diagnose the problem? Thanks Ed
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Zephyr ICTCloud ArchitectCommented:
Are you sure that it didn't go to the recipients spam box? Do you get any errors? Could be GMail just refuses the mail from your server? We'll need a bit more info ...

I'd start by checking any logs related to your script/sending mail... How is it sending mail exactly?

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TedMoreyAuthor Commented:
Wow - the messages are in my SPAM folder!
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