Is your SPF record broken or too permissive?
The broken SPF check finds SPF setups that mail servers cannot rely on, such as two records at once, a record that lets any sender pass, or one that needs more DNS lookups than mail servers allow.
What does this check look at?
It looks at whether your SPF setup is duplicated, allows any sender, or needs more DNS lookups than mail servers allow. Others list too many services in SPF and break the limit on lookups, so the record stops working.
Pulse and Deep scans both run it. It reads public records about your domain and never touches your site.
What does a result mean?
| What the report shows | What it means | What to do |
|---|---|---|
| Medium finding | The record lets any sender pass. | End it with a soft fail or a hard fail instead. |
| Low finding | There are two records, or too many lookups. | Merge into one record and trim the includes. |
It does not check whether your real senders are listed. A clean result means nothing was found in what the scan read. It does not prove the problem is absent from parts the scan never sees.
How serious is a finding?
Treat this as a hardening gap. It makes an attacker’s job easier but gives them no path of its own, so fix it after anything more direct. Confidence starts at medium, because it rests on public records rather than a response from your site. The report lists what to fix by how directly someone could use it, not by the severity label.
What does a confirmed finding have to show?
| Part | For this check |
|---|---|
| Where it starts | Mail servers checking who may send for your domain |
| The protection that should stop it | The SPF record is invalid, permissive or over the lookup limit |
| What is reached | SPF errors or lets any sender pass |
| What follows | Weaker email authentication for your domain |
Which standards does it relate to?
| Standard | Reference |
|---|---|
| OWASP Top Ten | A02:2025 Security Misconfiguration |
| CWE | CWE-345 |
Each one is a related control, not a verification. A scan sees what anyone online can see, so it never proves a whole requirement is met.
Fix it with your AI
The usual repair is merging duplicates and removing includes for tools you no longer use.
My SPF record is broken: [paste the evidence from the report]. Read my current SPF TXT records, list every include and what service it belongs to, and ask me which of those services still send mail as my domain. Then write one replacement v=spf1 record that covers only those, stays at or under ten DNS lookups when expanded, and ends in ~all. Tell me which old records to delete.How to check
Say Atlas, our example app at atlas.example, added a second SPF record for a new newsletter tool instead of editing the first. Mail servers treat two records as an error, and the check names it.
Run a Pulse scan from your Lockpick account to see it for your site. Pulse or Deep explains what each scan reads, and the full list of checks shows the rest.
Questions people ask
Why is two SPF records worse than one?
Mail servers treat more than one SPF record as an error, so neither one counts and your mail loses its SPF pass.
How do I get under the lookup limit?
Remove includes for services you no longer use, and ask providers for a narrower include. Some teams use a flattening service, which needs upkeep.
See what your site shows from outside
A quick check reads your homepage the way a visitor would and gives you a score. No account needed.
Check your siteSources
- Email anyone can send Lockpick docs, read on October 7, 2026
- How we rate findings Lockpick docs, read on October 7, 2026