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In the fifth part of our series on sender reputation, we explain how you can use DNS-based Authentication of Named Entities (DANE) to ensure the authenticity of certificates and protect your email traffic from access by criminals.
In the fourth part of our series of articles on sender reputation, we show you how you can use Domain-based Message Authentication, Reporting and Conformance (DMARC) to determine how the receiving server should authenticate your emails and what it should do if authentication fails. In addition, we explain how you can use DMARC to quickly be informed about abuse of your domain and thus protect the reputation of your domain.
Ensuring the authenticity of senders is therefore a crucial step in ensuring the security of your IT infrastructure. In part 3 of our series of articles on sender reputation, we show you how you can use DomainKeys Identified Mail (DKIM) to check the domain information of sender addresses and prevent spam and phishing attacks.
SPF, DKIM, DMARC and ARC are essential technologies for the detection of fake sender domains as well as for the defence against phishing attacks. Part 2 of our series of articles on sender reputation focuses on a method to authorise specific IP addresses to send emails: Sender Policy Framework (SPF) is a simple and effective method to prevent the misuse of sender domains.
Procedures for checking sender reputation have existed for some time. These provide an effective way to detect fake sender domains and thus prevent phishing attacks. Although they are easy to implement and do not require expensive tools, many companies do not apply them – and thus fail to secure their organization in the best possible way. Furthermore, they fall behind in direct comparison with criminals, because they are also constantly improving their setup.
In our series of articles on sender reputation, you’ll learn how each method works and how they can help you protect you and your organization from phishing with fake senders and other cyberattacks, and optimize your email security.
Part 1 focuses on the latest method that can be used as part of sender reputation checks: Authenticated Received Chain (ARC).
Email rules are actually designed to organize your inbox: automatically moving, forwarding, or marking messages as read. It is precisely these functions that make them attractive to attackers once an account has been compromised. In many cases, at least one malicious email rule is created shortly after the initial access, sometimes within seconds of the unauthorized login. We’ll show you how these attacks work and how you can protect yourself.
Many companies are wondering whether a traditional Secure Email Gateway (SEG) is still sufficient or whether Integrated Cloud Email Security (ICES) is the better choice. Read our blog post to learn about the strengths and limitations of both approaches and which one is right for you.
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