Skip to main content

SPF Surveyor

Our SPF Surveyor provides a graphical view of DNS records that allows you to more easily identify which third-party email sources and IPs are authorized to send on behalf of a domain. The tool will also verify that the SPF record has correct syntax and is free of errors that could lead to diminished email deliverability and failed email authentication.

Our tools are under maintenance. Please try again later.



Access/bookmark this inspection at

Did you mean


DNS queries to resolve the mechanism / modifier

Click on nodes to expand.

Expand all

Collapse all







DNS lookups needed to validate the record

This SPF record exceeds the maximum of 10 DNS lookups. Often, unnecessary entries can be safely removed after evaluating DMARC data. To learn how to address the "Too many lookups" issue, read our guide here:

This record has a high lookup count. Review and adjust as needed based on this domain's DMARC data

This record has a low lookup count. Review and adjust as needed based on this domain's DMARC data.

This record utilizes no DNS-querying mechanisms / modifiers. There are no efficiency gains to be made in terms of reducing the number of DNS queries.

Learn more about SPF mechanisms / modifiers.

netblocks are authorized, which equals

IPv4 addresses

It's important to periodically review SPF records to ensure that only necessary netblocks are included.

Duplicate netblock authorization

The following netblocks have been authorized more than once. Duplicates usually indicate inefficient records or redundant "include" mechanisms, and should be removed.

Record flattening

Get help resolving SPF’s 10 DNS lookup limit here. Learn why we strongly advise against SPF Flattening here.

Congratulations! Your SPF record is valid.

High five! Your SPF record is valid, but...

Warning! Your SPF record is valid, but...

There is something wrong with your SPF record.

No SPF Record for this domain.

we noticed you don't have a DMARC record. Add DMARC to disallow unauthorized use of your email domain to protect people from spam, fraud and phishing.

Let us help you get that fixed and start a free 30-day trial.

Get started

Click here to read our "Getting Started with DMARC" guide.

we noticed you don't have a dmarcian account. No problem, you can start a free 30-day trial and we can help you on your journey towards DMARC compliance.

Enter domain

Survey domain

Read more about how to create and add an SPF record here.

Dive deeper into the SPF Record Syntax Table here.

Get your domains into compliance.
Try out dmarcian at no cost!