Do you use Sender Policy Framework to prevent email spoofing?
After commercial organizations began suffering from email impersonation in the late 1990s, an authentication technique called Sender Policy Framework (SPF) was developed to prevent spammers from sending messages on behalf of your domain.
If your organization sends emails using its own corporate domain, it is highly recommended to enable Sender Policy Framework (SPF).
SPF is a protocol that allows you to restrict the spread of spam and other fraudulent content sent in the name of your company.
When an organization becomes a victim of spoofing, cybercriminals use its email domain to send fake messages. This typically involves spam and phishing emails used to carry out scams through fraudulent messages sent in your company’s name.
To limit this type of abuse, it is essential to enable the SPF protocol. It helps verify whether an email was actually sent by one of your organization’s authorized systems.
SPF, combined with DKIM and DMARC standards, provides much stronger protection against email spoofing carried out in your name.
An SPF record helps keep your emails out of the spam folder
With the SPF protocol, it is possible to verify whether an email was truly sent by you or whether your email address is being used improperly.
In your DNS (Domain Name System), an SPF record is added to specify which email systems — based on their IP addresses — are authorized to send messages on behalf of your organization.
Any other emails sent from unauthorized sources will be flagged as suspicious by the recipient and may therefore be blocked by spam filters.
Especially if your company has already been a victim of spoofing, there is a risk that other companies and organizations may have blocked your domain name, which could cause even your legitimate emails to be rejected.
The SPF record includes the IP addresses of all systems authorized to send emails on behalf of your organization.
When an email is received, the recipient’s server compares the “Envelope From” address (Return-Path header) with the information contained in the SPF record. This verification takes place before the message is fully accepted.
If the sending server is not listed in the domain’s SPF record, the email will be marked as suspicious and, in most cases, rejected by the recipient.
With the help of White Arrow Technology, your email becomes compliant with the SPF protocol
Today, using the SPF protocol is practically a standard for anyone who wants to protect their email servers in the most effective way possible.
The purpose of SPF is to reduce email spoofing and spam by verifying whether the sender of a message is actually authorized to send on behalf of the specified domain.
Since the correct implementation of this protocol is a technical task that requires specialized knowledge, you can rely on the experts at White Arrow Technology for this.
And of course, we don’t stop at simply configuring SPF correctly for your domain.
One of the limitations of the SPF protocol is that the number of included address lookups in the record must not exceed 10 DNS queries. We have the tools and expertise needed to structure this record correctly and ensure full compliance with the protocol requirements.
For us, SPF is just one piece of the puzzle.
To ensure complete protection, we also make sure that DKIM and DMARC are properly configured.
In addition, we can analyze all other email domain settings to identify vulnerabilities and optimize the security of your communication as much as possible.
