I have been pouring over the documentation for mailForm.  Everything I read tells me that this.mailForm(true); is legal and does not require special privileges.

Note also that in Reader X, I selected Edit - Preferences - JavaScript and made sure that the following boxes were checked:

Enable Acrobat JavaScript

Enable menu items JavaScript execution privileges.

If the form works in Acrobat, it should work in Reader where I really need it.  Can anyone help?

Thanks for replying.  The page you mentioned says:

Beginning with Acrobat 7.0, execution of JavaScript through a menu event is no longer privileged. You can execute security-restricted methods through menu events in one of the following ways:

●By opening the JavaScript category of the Acrobat preferences and checking the item named “Enable Menu Items JavaScript Execution Privileges”.

I did check that item (as I mentioned above).  So why can't I execute it?  At any rate, the mailForm documentation says that if the first parameter is TRUE, it operates in a non-privileged state. I have been using TRUE for this question.

So someone please tell me, why won't this.mailForm(true); work in Adobe X Reader while it works if I open it in Acrobat itself?

Thanks try67.  That's good to know.  I have been struggling with submitting forms for a couple of weeks and hope to get more information.

Thanks for your response.  In order to give my form what I believe to be the "according rights," I opened my form in Acrobat X Pro.

I then did Save As - Reader Extended PDF - Enable Additional Features.

After saving the form, the fields could be edited in Reader.  However it behaved the same way with this.mailForm(true) attached to the submit button.

I got the error: "Not allowed error.  Security settings prevent access to this property or method."  Why?

Note that for what it's worth, I had also earlier gone to the Acrobat X Pro menu item "Manage Trusted Identities" and selected Certicates - Edit Trust and checked all the boxes including "Embedded High Privilege JavaScript" and "Privileged System Operations."