An SPF record changes whenever someone adds or removes a service that sends email for the domain. A change nobody meant to make can send your email to spam.
A new newsletter tool or support system asks you to add its servers to the record. Removing an old service should remove its entry too.
A second SPF record added by mistake makes both invalid. A migration can overwrite the record, and an edit can drop an entry that was still needed.
Look up the TXT records of the domain and find the one that starts with v=spf1. Keep a copy of it to compare against next time.
SPF problems rarely show up on the sender's side. A message that tells you the record changed lets you check at once whether the change was meant.
Domain Night Watch alerts you when the SPF record of a domain changes. Open Domain Night Watch
Domain Night Watch is in testing.
Last reviewed: 2026-11-02
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This page gives general information and is not legal, financial or medical advice. [email protected]