Summary:

This article explains SPF Record (Sender Policy Framework) in a simple way. It helps you understand how SPF stops email spoofing, protects your domain, and improves email deliverability.

? Article Content

1. Introduction

Email spoofing is a common method where attackers send emails using your domain name without permission.
This can lead to:

• Phishing attacks

• Fake invoices

• Business email compromise

• Spam reputation issues

To stop this, we use SPF Record.

2. What Is SPF?

SPF (Sender Policy Framework) is a DNS TXT record that tells the world which mail servers are allowed to send emails on behalf of your domain.

Think of it like a guest list:
Only approved mail servers can send emails using your domain name.

3. How SPF Works (Simple Flow)

Step 1 – Domain owner adds SPF record

A TXT record is published in DNS with all authorized IPs/services.

Example:

v=spf1 include:spf.protection.outlook.com -all

Step 2 – Email is sent

Your mail server sends an email with a Return-Path domain.

Step 3 – Receiving server checks SPF

The receiver checks DNS for the SPF record of the domain.

Step 4 – Result: PASS / FAIL

• PASS: If sending IP matches the SPF record.

• FAIL: If IP is not listed → mail moves to spam, rejected, or quarantined.

4. Why SPF Is Important?

✔ Prevents spoofing
✔ Protects brand reputation
✔ Reduces phishing attacks
✔ Improves email deliverability
✔ Required by Microsoft 365, Google Workspace, etc.

5. Example of a Correct SPF Record

Microsoft 365:

v=spf1 include:spf.protection.outlook.com -all

Google Workspace:

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

Multiple services:

v=spf1 include:spf.protection.outlook.com include:_spf.google.com -all

6. Common SPF Mistakes

❌ Multiple SPF records (only ONE allowed)
❌ Forgetting to include third-party services
❌ Using +all (very dangerous!)
❌ More than 10 DNS lookups
❌ Not updating SPF after service changes

7. Video Explanation (CloudAid365)

? Watch the quick video here:
https://youtube.com/shorts/CYGTLo-HaTI

This video explains SPF in a simple Hinglish format.

8. Related Articles

• What is DKIM?

• What is DMARC?

• How ARC helps with email forwarding

• How to check your SPF record

• Microsoft 365 and Google Workspace SPF settings

9. Need Help?

Reach out to CloudAid365 for:
✔ Email security setup
✔ SPF, DKIM, DMARC configuration
✔ Tenant security assessments
✔ Cloud migration support