SPF is close to the 10-lookup limit

Check id: spf.lookups_near_limit · fix effort: medium

What it means

Your SPF record is close to a hard complexity limit. Adding one more email tool could quietly break authentication.

The technical detail

Resolved lookup count is 8 to 10 of the RFC 7208 limit. The next include: may tip it into permerror.

How to fix it

  1. Audit which includes are still needed.
  2. Plan flattening before adding any new sending service.

Does your domain have this problem?

Run a free scan, takes about ten seconds.