SPF (Sender Policy Framework), one of the three email authentication protocols, enables recipient email servers to verify whether or not the email received is an authorized one. However, SPF comes with its own set of intricacies, as there is a limit of 10 DNS lookups. Once the SPF record has reached the maximum limit of…
Starting 24 March 2025, the National Cyber Security Center in the UK has put an end to DMARC aggregate reporting— a feature that helped domain owners and administrators evaluate the efficacy and correctness of SPF, DKIM, and DMARC configurations. This significant change reflects a critical bracket for public sector organizations operating in the UK, especially…
SPF (Sender Policy Framework) records in DNS are TXT records that specify which mail servers are authorized to send emails on behalf of a domain, helping to prevent email spoofing. Implementing SPF records is crucial for improving email deliverability and protecting your domain’s reputation by reducing the chances of your emails being marked as spam…
If you regularly send out marketing emails for your business, you probably know what kind of emails we’re talking about— those automated messages sent from addresses like no-reply@yourcompany.com. These kinds of emails are very popular among businesses and are often used to convey some kind of information, like order confirmations, shipping updates, newsletters, and system…
SPF records, or Sender Policy Framework records, are essential components of email authentication that allow domain owners to specify which IP addresses are authorized to send emails on their behalf. They play a critical role in enhancing email deliverability and security by helping to prevent spoofing and ensuring that legitimate emails reach their intended recipients….
A Brevo SPF (Sender Policy Framework) record is essential for ensuring that emails sent from your domain are properly authenticated, improving deliverability, and preventing them from being marked as spam. Maintaining an effective SPF record not only helps in reaching intended inboxes but also protects your domain’s reputation by preventing unauthorized use for sending fraudulent…
Most organizations have strict norms and regulations on what resources their employees can access— like which systems are open to all, who gets special permissions like admin rights, or which tools are absolutely out of bounds. While most employees abide by these rules, there are some who find a way to work around them. This…
The Trello breach, which occurred in January 2024, resulted in approximately 15 million users having their email addresses, names, usernames, project management information, and activity logs scraped and offered for sale on a hacking forum. This incident raised significant concerns regarding user data security and highlighted the importance of implementing strong passwords and two-factor authentication…
Sender Policy Framework, or SPF, is a simple way to tell the receiving servers which IPs or mail servers are allowed to send emails on behalf of your domain. It basically means ‘allowlisting’ all those who are officially permitted to send emails as your business representatives. But that’s not all when it comes to implementing…
There are several free tools available for SPF flattening, including cfspf, which is tailored for users of Cloudflare, and DMARCDuty, which provides automatic SPF flattening without requiring self-hosting. Additionally, expurgate offers a self-hosted option for those who prefer more control over their SPF configurations. List of Free SPF Flattening Tools A variety of free SPF…
