Free SPF Record Generator

Adjust the following parameters and put the SPF record in you DNS records.

Enter your domain name:

Should any servers listed as MX be able to send email for this domain?

Yes (recommended)

Should the current IP address of the domain be allowed to send email for this domain?

Yes (recommended)

Should any hostnames ending in be able to send email for this domain?

No (recommended)

Yes

How strict should the servers be that handle the emails?

Fail (Reject non-compliant requests)

Soft Fail (Accept, but not mark non-compliant requests)

Neutral (Mail will be accepted probably)

Advanced Options:

List any IP address(es) (IPv4) authorized to deliver or relay mail for this domain: Separate multiple IP addresses with comma like 10.2.3.40,50.6.7.80

List any IP address(es) (IPv6) authorized to deliver or relay mail for this domain. Separate multiple IP addresses with comma like 3FFE:0000:0000:0001,2001:db8::/41

List any hostname(s) authorized to deliver or relay mail for this domain. Separate multiple hostnames with comma like host1.domain.com,host2.domain.com

List any domain(s) authorized to deliver or relay mail for your domain. Separate multiple domains with comma like host1.domain.com,host2.domain.com

Put this SPF record in your DNS records (copy and paste this):

Done? Test your SPF record

The Sender Policy Framework (SPF) is an email authentication protocol that is designed to help prevent email spam and phishing attacks. It works by allowing email administrators to specify which IP addresses are authorized to send emails on behalf of a particular domain.

When a receiving mail server receives an email, it can check the SPF record for the domain in the email's "From" address to determine if the sending IP address is authorized to send emails for that domain. If the sending IP address is not authorized, the receiving mail server may mark the email as spam or reject it altogether.

SPF records are added to a domain's DNS records and typically include a list of IP addresses and/or ranges that are authorized to send emails for the domain. The SPF protocol has been widely adopted and is now a recommended practice for email authentication.