Contact Us emails failing validation

[mc12345678]

Site is running 1.5.1. I am thinking it may be the quick form for the contact us that is in the mega menu header I have up. The errors don't specify what page as it is in the sending of the mail that it fails, thinking that that tells me the built in anti spam is doing it's job.
The issue now is that over the holiday weekend I didn't receive any of my order confirmation emails... strange thing are brewing

Are you still getting the same type of error message as first reported?

I traced through the email code: STOREDIRECTORY/includes/functions/functions_email.php

That error message is provided (failed validation) if it doesn't pass the zen_validate_email function... If the email truely is of a valid type (Ie., properly formatted) and the code has not been changed, then you may have an observer that is looking for: NOTIFY_EMAIL_VALIDATION_TEST that is modifying the $valid_address variable to state FALSE... Check using DTK to see if that notifier is being listened for.

In a search of my files I only found that in one location, the function itself...