SPF Generator: Building a Record One Answer at a Time
A guided tour of the SPF generator, how the questions map to senders, why the lookup counter matters, and what to do with the record once it is built.
Tag: SPF
SPF Records: Includes and the Ten-Lookup Limit
How SPF records actually work, why they break when they grow too large, and how to build one from scratch, safely.
SPF, DKIM, DMARC: Authentication Minus the Jargon
What SPF, DKIM and DMARC actually do, why the major inbox providers made them mandatory, and how to check your own domain in seconds.