# SPF Record — Domain Verification — PostFrame — EternalEngine

Sender Policy Framework declares which mail servers may send email for your domain. PostFrame generates and validates your SPF record automatically.

[Back to Domain Verification](https://eternalengineos.io/features/postframe/domain-verification/)SPF

Domain Security

# SPF Record

PostFrame gives you the exact SPF record to publish — v=spf1 include:amazonses.com ~all — checks it on demand, and if your domain already has an SPF record it shows the merged line to paste instead of a second one.

[Start free](https://app.eternalengineos.io/signup?plan=free&interval=annual)[Domain verification overview](https://eternalengineos.io/features/postframe/domain-verification/)

## How SPF Works

Authorized sender list

SPF publishes a DNS TXT record listing the IP addresses and services allowed to send for your domain

Spoofing prevention

Receiving servers check the SPF record to verify the sending server is authorized — blocking forged senders

Generated for you

PostFrame lists the exact include directive to publish and resolves the record live when you press Check

One record per domain

A domain may have only one SPF record; if one exists, the check reports a mismatch and shows the merged record ready to paste

SPF Record Example

Record type

TXT

Host

@ (root domain)

Value

v=spf1 include:amazonses.com ~all

Bounce domain too

bounce.yourdomain.com gets its own MX and SPF so the envelope sender aligns

## Keep exploring PostFrame

[### DKIM signing Three CNAMEs and a 2048-bit signing key. Open DKIM signing →](https://eternalengineos.io/features/postframe/domain-verification/dkim/)[### DMARC policy Starter record at p=none with reports to you. Open DMARC policy →](https://eternalengineos.io/features/postframe/domain-verification/dmarc/)[### Domain verification Every record, with a Copy button and a live check. Open Domain verification →](https://eternalengineos.io/features/postframe/domain-verification/)

Questions

## Common questions, straight answers.

What exactly do I add for SPF?

A TXT record at the root of your domain with the value v=spf1 include:amazonses.com ~all, plus a second TXT record with the same value on bounce.yourdomain.com for the custom bounce domain.

My domain already has an SPF record — do I add a second one?

No. A domain may have only one SPF record and a second one breaks both. PostFrame detects the existing record, reports a mismatch, and shows the merged record with the include added so you can paste it over the old one.

How does PostFrame check the record?

It resolves the TXT record with a live DNS lookup each time you press Check and reports found, missing or mismatch per record, along with the value it saw.

## Run your business from one place.

Five plans, seventeen launch apps, one dashboard. Set up in under 5 minutes — change tiers any time.

[Start free$0 forever • No card • Upgrade any time](https://app.eternalengineos.io/signup?plan=free&interval=annual)[Talk to Sales](https://eternalengineos.io/contact/)

From $0 · Basic $9.95/mo · Save 20% on annual billing · Upgrade or downgrade any time