How Emailmetry works.

Emailmetry flattens supported SPF references into sending IP ranges to reduce nested DNS lookups, then keeps those ranges current as your providers change them.

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  1. 1 Add your domain

    Choose the domain and the services that send email for it.

  2. 2 Add our DNS record

    Add the record Emailmetry provides at your existing DNS provider.

  3. SPF stays up to date

    Emailmetry refreshes the IP ranges in your flattened SPF record as your providers change their sending addresses.

Start using another email service? Add it in Emailmetry so its sending addresses are included too.

SPF record compatibility

Emailmetry can flatten supported SPF records regardless of which email service publishes them. It reads the sending addresses from the SPF references your domain uses and keeps those addresses current.

Compatibility depends on the policy’s mechanisms and whether its references resolve to fixed IP ranges. Check the technical limits below for your actual record.

Keep your DNS provider too. You just need access to edit your domain’s TXT records.

Technical compatibility

Emailmetry supports policies that can be represented by fixed IPv4 and IPv6 sending ranges, including supported provider references.

Records exceeding the ten-lookup limit can be flattened when their references resolve into supported IP ranges. Invalid syntax and broken references need separate correction.

SPF does not replace DKIM or DMARC, or guarantee delivery. Read the technical safeguards.

Need help? Email support@emailmetry.com.