Stuck in the middle of an ASP form and the Host, any help

Ok, I have setup an asp form, and all appears fine, however on submit I get this error message:

Microsoft VBScript runtime error ‘800a0046’

Permission denied

/successful.asp, line 57

I am using CDONTS, but cannot seem to understand why this is happening, all looks good to go.

Line 57 is this line of code from the asp form

Set objOutbox = objSession.Outbox

Any ideas