Looks like it could be unencrypted signatures in the ZA update, not very good, signatures should be encrypted so other security applications don't detect them.
What exactly are you trying to email from the chest ?
What do you mean unable to email from the chest, what happens, what errors, etc.
This functionality has recently changes where although there is a link to email it isn't actually emailed but uploaded. You would however, get a pop-up form to complete.