How long does it take for DHA protection to see new e-mail addresses in Active Directory?
We added some new employees yesterday to our AD and Exchange servers and then had some external e-mails sent to them from the company doing our payroll. The DHA protection kicked in and the e-mails were bounced. When I tested the usernames in the appliance, it found them just fine. Does the DHA protection use some kind of cache that's updated periodically? I ended up having to disable DHA protection to get e-mails to come in to the new accounts without bouncing. Then, this morning, I turned it back on, and external e-mails come in just fine.