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SPF generator

Build a v=spf1 … TXT record from one or more ESP presets and an optional custom include:. Paste the output directly into your DNS provider as a TXT record at the apex of your sending domain.

ESP presets

Google Workspace Microsoft 365 / Outlook Amazon SES Zoho Mail Mailchimp Zendesk

Custom include (optional)

Comma-separate to add more than one.

Trailing all qualifier

Generated record

v=spf1 include:_spf.google.com ~all

DNS record

Type	TXT
Host	@ (or your domain apex)
Value	`v=spf1 include:_spf.google.com ~all`
TTL	3600 (1 hour)

What is SPF?

SPF (Sender Policy Framework) is a DNS-based mechanism that lists which servers are authorised to send mail for your domain. Receivers check the SPF record against the envelope-sender to decide whether to accept, quarantine, or reject the message.

Use ~all while you're rolling out — it tells receivers "anything else is suspicious, but accept it". Once you're confident every legitimate sender is in the record, switch to -all for strict enforcement.