RE [this answer][1]

User wants to find a "way to get around this 10-lookups-only limit"

The 10 lookup limit is a limit for DNS lookups. Flattening the SPF record to include less DNS lookups and substituting them for IPs (flattening) DOES get around the limit.

The answer is suitable. Maybe @DavidPostill needs to take a look at the [RFC][2]?

Question in focus is https://superuser.com/q/628810/4377

  [1]: https://superuser.com/a/1281311/68374
  [2]: https://tools.ietf.org/html/rfc7208#page-17
  [3]: https://stackoverflow.com/questions/14261214/too-many-dns-lookups-in-an-spf-record/48039611#48039611