Does anyone know if it is possible for a user to exceed an allowable number of entries in their Safelist / blocklists? if so, any idea of what that number is?Thanks!

When we adopted the IronPort solution a few years ago, we implemented a whitelist sendergroup with a trusted mail flow policy. The sendergroup used a +6 to +10 score and the mail flow policy exempted senders from anti-spam processing. Up unitl the l...