SPF redirect vs include: when to use each (and 5 mistakes to avoid)
SPF redirect= vs include:: when to use each SPF has two features that are easy to confuse: include: redirect= Both can cause another SPF policy to be evaluated. But they solve different problems. A useful mental model is: include: -> add another sender policy to your own redirect= -> delegate the final SPF decision That difference sounds small, but it changes how the record behaves. If you only remember one thing from this article, remember this: Use include: when another service is one part of…