Category: Email/MX Records

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…

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…

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…

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…

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,…

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 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…

Email remains a critical communication tool for organizations of all sizes, and ensuring its reliability requires more than just functional servers and client applications. One of the most foundational yet frequently misunderstood components of email resilience is the configuration of multiple MX records for redundancy. Properly managing these records within the DNS system can mean…

In the architecture of email delivery, reliability is not just a feature—it is a necessity. Emails must reach their destination without delay or loss, even when infrastructure faces disruption. One of the key components in ensuring this level of resilience is the use of backup MX services. While many are familiar with primary MX records…

Email remains one of the most widely used and heavily targeted communication systems on the internet. With its global reach and low barrier to entry, it is also an attractive vector for cyberattacks, including phishing, spoofing, and spam. As a result, securing email infrastructure has become a top priority for organizations that value both reputation…