SPF delegation is a one-time setup where a domain owner gives control of their SPF record to an external email server or a third-party service to send emails on behalf of the domain. To do this, you have to make some changes to the current SPF, and the revised record has to be published by…
Amazon Simple Email Service, or SES, is a cloud-based email-sending service developed for businesses that send marketing, notification, and transactional emails. Regardless of the types of emails you send, it’s crucial to protect them from threat actors. Without proper protection, illegitimate emails sent on your behalf could end up in the inboxes of recipients, potentially…
Here’s a harsh truth- your customers’ card transactions are not as secure as you might think. Even though card payments have opened up new avenues in the business world, there exists a problem! This payment method puts your customers at risk of credit card theft and jeopardizes the credibility of your business. Given the current…
For network administrators, understanding DNS packet fragmentation is crucial. When a DNS response packet is large and unable to fit within the MTU size, it’s divided into smaller fragments. MTU, or the maximum transmission unit, is the largest size of a packet or frame that can be sent across a data link. This process affects…
If your domain is already protected with the Sender Policy Framework (SPF) and you regularly update and monitor your SPF records, then we are sure you must be aware of the SPF lookup limit. But do you know how to get rid of this problem and stay within the lookup limit to avoid invalidation of…
DKIM key rotation is an important security measure that ensures your DKIM records and email ecosystem aren’t exploited for long if keys are compromised. While the frequency of rotation depends on the nature of your organization, the complexity level of your email infrastructure, the availability of resources, etc., it’s suggested that you rotate them at…
Emails are important yet one of the most vulnerable strings of corporate communication. Not to forget how AI-written sophisticated emails are making it more challenging for CISOs to deploy filters to detect and burn illegitimate emails. Gone are the days when detecting poor grammar, inconsistencies, unprofessional graphics, etc., was enough to tag an email as…
Shopify is an e-commerce platform based out of Canada, and if you have an online store listed on it, then adding SPF and DKIM records is important. This ensures no unauthorized entity sends spoofed emails on your behalf to fool recipients into sharing personal and financial details. You can test your email address by sending…
An SPF record can encounter different types of errors, causing it to become invalid and incapable of offering protection against phishing and spoofing email messages. These errors arise due to exceeding the character length limit, incorrect use of syntax, misconfigurations, etc. Once the error is resolved, the instances of false positives and protocol breakage stop…
As per RFC 7208 Section 3.1, the developers felt the necessity to assign a new DNS RR type. However, in 2014, it was deprecated as they discovered that TXT type RR was a better choice for SPF records. Today, SPF records must only be published as a DNS TXT RR; otherwise, it will encounter the…
