The SPF policy could not be unfolded into a complete list of addresses.

SPF_FLATTEN_INCOMPLETE · Severity: Warning

• WarningSPF_FLATTEN_INCOMPLETE

  The SPF policy could not be unfolded into a complete list of addresses.

  The evidence gives the reason: a limit at which receivers stop with PermError (10 DNS lookups, 2 lookups without an answer, an mx with more than 10 MX records), a syntax error, an include or redirect without one usable SPF record, an SPF tree too large to walk completely, a failed lookup, the query budget, more than 500 blocks, or exists, ptr and macro mechanisms, whose addresses depend on the sender. The listed blocks are then only part of what the policy lets pass.

  Recommendation: Fix the limits the evidence names before relying on the list.

Reported by

• SPF flattening check

Available through the API

• SPF flattening check API

Related findings

• Warning SPF_FLATTEN_BROAD The SPF policy lets a very large address block pass.
• Error SPF_INCLUDE_LOOP The SPF chain returns to a domain it already evaluated.
• Error SPF_INCLUDE_NOT_FOUND An included or redirected domain has no SPF record.
• Info SPF_MACRO_NOT_EVALUATED An SPF record contains macros that were not evaluated.
• Error SPF_MULTIPLE_RECORDS More than one SPF record was found for a name in the SPF chain.
• Warning SPF_NEUTRAL_ALL The SPF policy ends with ?all.

All findings