How to configure SPF, DKIM, DMARC and BIMI security protocols?

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Previously we saw how we can protect ourselves from phishing and email spoofing both as users and as a company. However, in this post we want to go deeper into the identity verification protocols that any company, organization or entity can configure to prevent cybercriminals from impersonating a legitimate sender by impersonating them using the same domain name. We will see how we can authenticate domains with SPF (Sender Policy Framework), DKIM (DomainKeys Identified Mail), DMARC (Domain-based Message Authentication, Reporting and Conformance) and BIMI (Brand Indicators for Message Identification).

First of all, we must be aware of the importance of hong kong mobile phone number list having these identity verification protocols implemented when we want to send email campaigns. It is not only a matter of security, it also prevents our emails from being marked as suspicious by email analysis tools when sent without SPF and/or DKIM signature.

To configure SPF, DKIM, DMARC, and BIMI authentication settings for your domain, you need access to your hosting account's DNS records . If you can't find them or don't have access to them, your hosting provider can help.

SPF ( Sender Policy Framework )
To recap, SPF is an authentication protocol that determines and defines who can send emails from a specific domain with authorization, and therefore links the domain name to an email address. In this way, if someone sends an email from a server other than the one authorized, the message will be considered SPAM or will not be delivered. Thanks to the implementation of this protocol, we will be able to eradicate the problem and threat of email spoofing.


When setting up, there are two things to remember about SPF records:

An SPF record is a type of TXT record .
There should only be one SPF record per domain. If you have multiple DNS SPF records, email operators will not know which one to use, which could cause authentication issues.
Check your DNS records from your hosting account. If you don't see any SPF record, create one. Otherwise, you just need to update the existing SPF record.


How can we create an SPF record?




1- Determine the domains and IP addresses you use to send your email marketing campaigns.

2- Create an SPF record: Add a DNS TXT record to your domain provider.

The fields listed in these steps may have a different name in your domain provider's settings. Each provider gives different names to these fields.
Once an SPF record is added, it may take up to 48 hours for SPF authentication to start working.
4- Insert this line of text into your SPF record in the “value” field if your organization’s emails are sent only with Google Workspace: