Foundational 6 min
Is the Microsoft Account Security Alert email a scam? How to differentiate between a genuine and fake alert email
Have you been receiving security alert emails from Microsoft lately? Well, you are not alone!
Knowledge Base
Blog
Expert guides on SPF, DKIM, DMARC, and email security.
Foundational 3 min
Threat actors are exploiting multiple SMTP servers and bypassing SPF, DKIM, and DMARC authentication
Cybersecurity works only if there are no vulnerabilities in the tools and protocols themselves.
Advanced 5 min
What Is a Secure Email Gateway (SEG)?
A secure email gateway (SEG) filters inbound and outbound mail to block phishing, spam, and malware. See how SEGs work and what they protect against.
Advanced 3 min
Configuring SPF, DKIM, and DMARC for Brevo (formerly Sendinblue)
To authenticate email sent through Brevo (formerly Sendinblue), add include:spf.brevo.com to your SPF record, configure Brevo's DKIM CNAME records from the dashboard, and publish a DMARC record. All three are required for full authentication.
Intermediate 3 min
Setting up SPF for Sophos
Sophos is a British security software and hardware company that offers a suite of products.
Foundational 3 min
Does SPF break for forwarded emails and mailing lists?
Yes - SPF breaks for forwarded email and mailing lists because the forwarder's IP is not in the original sender's SPF record. This is a known RFC 7208 limitation and the main reason DKIM, DMARC, ARC (RFC 8617), and SRS exist.
Foundational 5 min
Trello data breach results in massive exposure of data on the dark web!
Big and small brands across the globe are falling prey to cyberattacks, and this time, it is Trello, the insanely popular project management tool.
Intermediate 5 min
Are Your SPF and DKIM Identifiers Aligned?
As you know, DMARC is based on SPF and DKIM, and the alignment of both these protocols is crucial for its processing.
Foundational 3 min
Generative artificial intelligence and machine learning are overcoming the limitations of traditional cybersecurity measures
Threat actors are leveraging the speed and accuracy of artificial intelligence to launch sophisticated, difficult-to-detect cyberattacks.
Advanced 8 min
Fix '554 5.7.5 Permanent Error Evaluating DMARC Policy'
The '554 5.7.5 permanent error evaluating DMARC policy' bounce means your DMARC record is missing or invalid. Here's what causes it and how to fix it.
Intermediate 6 min
What is ARC (Authenticated Received Chain) and its role in email security?
ARC or Authenticated Received Chain helps overcome the shortfalls of DMARC, further strengthening the overall email security standards.
Advanced 5 min
SPF Alignment Failed: What It Means & How to Fix It
'SPF alignment failed' means your envelope and header From domains don't match for DMARC. Learn what SPF alignment is and how to fix the error.
Intermediate 4 min
SPF record lookup: A much-needed diagnosis
These days, LLMs, or large language models, are making it easier for threat actors to write convincing phishing emails without leaving suspicious red flags.
Foundational 4 min
Which IP addresses you should not add to your SPF records?
The foremost step of creating an SPF record is enlisting all the IP addresses and mail servers that you want to add to it.
Intermediate 3 min
Setting SPF and DKIM for Salesforce
When using an external email sender, like Salesforce, to send emails from addresses within your domain, it’s crucial to set up SPF and DKIM.
Intermediate 4 min
What is the Role and Relevance of SPF Surveys?
SPF or Sender Policy Framework is the first line of defense between your email ecosystem and email-based cyberattacks.
Advanced 6 min
How is Sender Policy Framework (SPF) Delegation Done?
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.
Foundational 4 min
New Update: Microsoft Joins Forces for Stronger Email Authentication
It was not long ago when Google and Yahoo revamped their email-sending policies and made DMARC authentication a mandatory exercise for organizations sending.
Intermediate 4 min
Difference Between SPF Setup for Small, Medium, and Large Businesses
If the answer to all these questions is a solid ‘yes,’ then you surely can be under the radar of email phishers and spoofers.
Foundational 4 min
7 Myths and Misconceptions about Sender Policy Framework
Understanding the realities and limitations of the Sender Policy Framework (SPF) is crucial for making informed decisions about your email security.
Foundational 4 min
Background of Scott Kitterman and His Contribution to Sender Policy Framework
Email security was a headache for tech giants (and even some smaller companies) in the late 1990s.
Intermediate 4 min
Qualtrics, Moosend, Shopify, and Other Major Email Service Providers are Emphasizing the Deployment of DMARC
They use various social engineering and phishing tactics to manipulate recipients into sharing confidential information, transferring money, downloading.
Intermediate 5 min
How Does the CIDR Notation Error Affect SPF?
All the IP addresses that you officially allow to be used for sending emails on your behalf are listed in an SPF record.
Intermediate 5 min
Sender Policy Framework Risk Exposures in 2024
Sender Policy Framework is an email authentication protocol that allows a domain owner to publish an SPF record corresponding to their name.
Foundational 5 min
The Role and Relevance of DNS SPF Records for Email Authentication
Email authentication, a crucial practice in today’s digital world, is the process of verifying the true identity of an email sender.
Foundational 5 min
Understanding Homoglyphing: The Craft of Deception in Phishing Attacks
Have you ever come across a URL that seems legitimate at first glance, yet there is something fishy about it?
Foundational 3 min
Impersonation Attacks During Tax Season- Here’s How You Can Protect Yourself
During the tax season, cybercriminals impersonate IRS officials and call taxpayers, scarring them into taking desperate and hasty action.
Advanced 4 min
How Does DNS Packet Fragmentation Affect the Sender Policy Framework?
How Does DNS Packet Fragmentation Affect the Sender Policy Framework? explains SPF record management, sender authentication, troubleshooting steps, and.
Intermediate 8 min
How Does SPF Help Marketers in Improving Email Deliverability?
Imagine a situation where all your well-crafted emails land in your audience’s inbox, and they actively engage with them!
Intermediate 3 min
Why the SPF Character Limit Exists and How Can You Stay Within It?
Why the SPF Character Limit Exists and How Can You Stay Within It? explains SPF record management, sender authentication, troubleshooting steps, and how.
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