SPF 10 Lookup Limit and How to Fix It
If you've spent any time configuring SPF records, you've likely encountered the "SPF PermError: Too many DNS lookups" message. This isn't a vague warning; it's a hard limit defined by RFC 7208, and exceeding it means your SPF record effectively breaks. When SPF breaks, DMARC often fails, leading to your legitimate emails landing in spam or being rejected outright.
This article will break down why this limit exists, how to identify when you're hitting it,