SPF Record Generator

Maileroo includes an SPF Record Generator, a practical tool for enhancing email security. SPF, or Sender Policy Framework, is a method used to prevent email spoofing. It allows domain owners to specify which mail servers are permitted to send emails on behalf of their domain. This is crucial in combating spam and phishing attacks.

The SPF Record Generator simplifies the process of creating these SPF records. Normally, crafting an SPF record requires technical knowledge, as it involves specifying all the mail servers authorized to send emails from your domain. Maileroo’s tool makes this process user-friendly, guiding you through the creation of a valid SPF record without requiring extensive technical expertise. This feature not only saves time but also reduces the likelihood of errors, ensuring your email communication remains secure and trusted.

SPF Generator

To use the SPF Record Generator, simply enter your domain name in the text box, fill in the required parameters and click the “Generate SPF Record” button. The tool will then generate a valid SPF record for your domain. You can then copy and paste this SPF record into your DNS settings.

Do you want to allow your servers specified in your MX records to send mail?

Do you want to allow the IP address (A Record) of your domain to send mail?

What IPv4 addresses (or range) do you want to allow to send mail? (comma separated)

What IPv6 addresses (or range) do you want to allow to send mail? (comma separated)

What other domains do you want to allow to send mail or relay emails for your domain? (comma separated)

Which external email service providers do you use that should be included in your SPF record? (comma separated)

How strict do you want your SPF record to be?

What is SPF?

SPF, short for Sender Policy Framework, is an email authentication method designed to detect forging of the sender address during the delivery of the email. SPF allows the owner of a domain to specify which mail servers they authorize to send mail from their domain.

How Does SPF Work?

SPF works by allowing a domain owner to publish a list of IP addresses or subnets that are authorized to send email on behalf of their domain. This list is published in the domain's DNS records. When an email is sent, the receiving mail server checks the SPF record of the sender's domain to verify that the email is coming from an authorized mail server.

How to Implement SPF?

An SPF record is written in a specific syntax and added to the domain's DNS as a TXT record. The syntax includes mechanisms such as 'a', 'mx', 'ip4', 'ip6', and 'include', qualifiers like '+', '-', '~', and '?', and a default mechanism 'all'.

What are the Benefits of SPF?

Implementing SPF helps in reducing spam and phishing emails, as it makes it harder for malicious senders to masquerade as trusted senders. It also helps in improving the deliverability of legitimate emails, as ISPs and receiving servers are more likely to trust emails that pass SPF checks.

What are the Limitations of SPF?

SPF alone doesn't cover all aspects of email security. It checks only the envelope sender address, not the header (or 'From') address, which is what the recipient sees. Also, if an email is forwarded, the SPF validation can fail. SPF works best in combination with other standards like DKIM and DMARC.

How to Maintain SPF?

It's important for domain owners to maintain and update their SPF records. If the organization changes its email service provider or starts using new email sending services, the SPF record needs to be updated accordingly to prevent legitimate emails from being flagged as spam.

What are Some Examples of SPF Records?

"v=spf1 ip4:192.168.0.1 -all": Only the IP address 192.168.0.1 is authorized to send emails, and all others are explicitly disallowed.

"v=spf1 include:_spf.google.com ~all": Delegates authority to Google's SPF record, with a soft fail for other sources.

What are Some Best Practices for SPF?

Keep SPF records as simple and concise as possible.
Regularly review and update SPF records to reflect changes in mail servers or services.
Use SPF in conjunction with DKIM and DMARC for enhanced email security.
SPF is a foundational element of modern email security practices, helping to ensure that emails are sent and received with authenticity and integrity.