Hello,
Do you have a cluster of Barracuda Spam Firewalls behind a network firewall, load balancer, or other device that sends a heartbeat check to see if they are still on the network? Be sure not to block yourself with the default rate control limits in the Barracudas. Under the Advanced tab, select Rate Control, and then add the IP addresses generating the heartbeats.
Do you have a cluster of Barracuda Spam Firewalls behind a network firewall, load balancer, or other device that sends a heartbeat check to see if they are still on the network? Be sure not to block yourself with the default rate control limits in the Barracudas. Under the Advanced tab, select Rate Control, and then add the IP addresses generating the heartbeats.