Did you change your designer version recently? Usually this won't happen unless someone opens the form and edit it.
Try to remove the button and place another email button with proper email address mentioned.
I'm facing a strange problem with my designer: Sometimes, the code written in some events gets cleared automatically. Not sure if this happens to you as well.
Let me know your designer version.
I have LIveCycle ES 8.2 which hasn't been changed since installation a year ago.
The way I was told from Adobe to create the email submit was to use the regular "button" object and make the control type "submit", etc. I've tried to redo the button and I'm still getting the error in LiveCycle. Any ideas? The "email submit" object button has never worked properly for me.
Maybe the code is getting deleted on mine too? I don't know code very well so it's hard for me to tell.
Thank you for any ideas you may have for me.
Are you using the Distribute functionality to get your form to your users?
Is that when you opt to distribute the form after it's been created? If so, I am not.