What is alert 8307?
GMS Anti-Spam has sent a confirmation message to someone because they do not appear in one of your local user’s address books. The original message will now reside in the user’s Quaratine folder.
In this case, connection Undefined (session Undefined for account Undefined) has just sent a confirmation to Undefined (from personality Undefined).
No action is required by you.
Keywords:confirmation filter 8307