When someone hits send on an email, they rarely consider the complex sequence of events that ensures the message arrives at the right inbox. Behind this everyday action lies a well-orchestrated process involving the Domain Name System, or DNS, and a specific type of DNS record known as the Mail Exchange record—better known as the…

The landscape of DNS and email infrastructure is undergoing a significant transformation as emerging technologies, heightened security demands, and evolving usage patterns reshape the way email is delivered, authenticated, and managed across global networks. As the internet becomes increasingly complex and distributed, the traditional models of email routing and domain resolution are giving way to…

MX records, or Mail Exchange records, have been a foundational component of the Domain Name System (DNS) since the early days of internet email. Their purpose is to direct incoming email to the correct mail servers for a given domain. While their function has remained broadly consistent—to define the priority and destination of email delivery…

The internet backbone is the complex, high-capacity network of intercontinental fiber-optic cables, core routers, and major peering points that form the central nervous system of global data communication. It is built and maintained by Tier 1 network providers, governments, and large infrastructure companies, and it facilitates the uninterrupted exchange of data across the world. Email,…

The Border Gateway Protocol, or BGP, plays a critical yet often invisible role in how email is routed across the internet. While email delivery is commonly associated with DNS records such as MX, SPF, and DKIM, and SMTP configurations on mail servers, the actual path an email takes between source and destination is governed by…

Internet Exchange Points, or IXPs, play a foundational yet often invisible role in the efficiency, speed, and reliability of email delivery across the global internet. While most conversations around email infrastructure focus on DNS records such as MX, SPF, DKIM, and DMARC, or the configurations of mail transfer agents and filtering systems, the actual transit…

Managing DNS records through APIs is rapidly becoming the standard approach for organizations that require agility, scalability, and precision in administering their domain configurations, especially for email systems where the integrity of MX, SPF, DKIM, and DMARC records is essential. Manual updates via web interfaces are suitable for occasional changes, but they quickly become inefficient…

DNS, or Domain Name System, serves as the backbone of internet communication by translating domain names into IP addresses and directing traffic for services such as email through records like MX (Mail Exchange). The integrity and availability of DNS configurations are crucial for maintaining uninterrupted access to websites, email systems, and other internet-based services. Despite…

Implementing DMARC, or Domain-based Message Authentication, Reporting and Conformance, through DNS is a vital step for securing a domain’s email reputation and protecting users from phishing and spoofing attacks. DMARC builds on existing SPF and DKIM protocols to enable domain owners to specify how unauthenticated messages should be handled by receiving mail servers. It also…

Setting up MX records is a foundational task when configuring email for a custom domain. MX, or Mail Exchange, records are DNS entries that tell the internet where to deliver emails sent to your domain. Without properly configured MX records, email services will not know which servers handle incoming messages for your domain, leading to…