Hi everyone... We have one contact record that is giving this error when trying to send a manual notify email from a ticket. The contact record does have a valid email address in the 'email address' field.
I have changed that email address to my own and tested, and am getting the same error. I am getting this error only on this one contact record, but am getting the error in both our test and production systems. I have re-created a new contact record from scratch, tested, and am still getting the same error. If I select his contact record in the 'contacts' field of the manual notify screen, I also get the same error. But if I put his email address in the 'Email address' field of the manual notify screen, it sends the email successfully. If I change the customer to another person's contact record and try sending a manual notify to that customer, it works just fine.
Does anyone have any ideas what might be causing this, or how to fix it?