What is an SPF record?

A DNS TXT record that lists which mail servers may send for your domain. Receivers use it to spot spoofed From addresses.

How do I create an SPF record?

List every sender, build one v=spf1 string, and publish it as a TXT on the domain apex. This generator writes that string for you.

What SPF record should I use for Microsoft 365?

Include include:spf.protection.outlook.com and end with ~all or -all. Example: v=spf1 include:spf.protection.outlook.com -all.

Can a domain have multiple SPF records?

No. Multiple v=spf1 records fail evaluation. Merge every include and IP into a single record.

How do I check if my SPF record is valid?

Look up the domain TXT records with our DNS tool and confirm there is exactly one v=spf1. Then send a test message to a receiver that shows Authentication-Results.

What is SPF Record Generator?

A free online builder for a single SPF TXT record, including Microsoft 365 and common email platforms.

How does the SPF Record Generator work?

It concatenates the senders you select, counts lookup-heavy mechanisms, and warns you about +all, ?all, and duplicate records.

How do I use the SPF Record Generator?

Enter the domain, tick senders, copy the TXT value, and publish it once on the apex.

Is this SPF Record Generator free to use?

Yes. It is free with no sign-up.

Can I use the SPF Record Generator on mobile?

Yes. Mobile browsers are supported.

Free SPF Record Generator for Microsoft 365

Free SPF Record Generator for Microsoft 365 | Binary Tech