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🧬 SPF Record Wizard
Generate a valid SPF record for your domain to authenticate senders and improve deliverability.
SPF TXT Record
Copy the code below and add it as a TXT record to your DNS settings.
📘 What Is SPF?
SPF (Sender Policy Framework) is a DNS TXT record that specifies which mail servers (by IP address or domain name) are authorized to send email on behalf of your domain.
A valid SPF record is essential because it helps receiving mail servers verify the source of the email, preventing spoofing and significantly increasing your email deliverability.
A valid SPF record is essential because it helps receiving mail servers verify the source of the email, preventing spoofing and significantly increasing your email deliverability.
⚠️ SPF Best Practices
- ✅ **One Record Only:** You must only have one SPF record (one TXT record starting with
v=spf1) per domain. If you have multiple providers, they must be merged into a single record. - ✅ **SoftFail (~all):** The recommended qualifier for most companies is
~all(SoftFail), which suggests that non-approved emails should be marked as suspicious, not outright rejected.-all(HardFail) should only be used if you are 100% certain of all sending sources. - ✅ **10 Lookup Limit:** SPF records have a strict limit of 10 DNS lookups (mechanisms that use domains, like
include:,a, ormx). Exceeding this limit will cause the SPF check to fail. Keep your includes minimal!