SPF has a hard 10-DNS-lookup limit. Most organizations hit it by their fourth or fifth email service. SPF flattening replaces include chains with static IP addresses to stay under budget, but it creates operational risks you need to manage.
Need help?
Contact usSPF has a hard 10-DNS-lookup limit. Most organizations hit it by their fourth or fifth email service. SPF flattening replaces include chains with static IP addresses to stay under budget, but it creates operational risks you need to manage.