Category: Email/MX Records

Email encryption is a critical component of modern digital communication, ensuring that messages remain private and secure during transmission. One of the most widely adopted methods for securing email in transit is SMTP over TLS, commonly implemented through the STARTTLS command. This method provides opportunistic encryption between mail servers, safeguarding message content from eavesdropping and…

Email deliverability—the ability of an email to successfully reach a recipient’s inbox rather than being rejected or filtered into spam—depends heavily on the configuration of DNS records. These records not only route email properly through MX (Mail Exchange) entries but also establish the authenticity, legitimacy, and trustworthiness of the sender. Misconfigured or incomplete DNS records…

Email deliverability is a constant concern for organizations that rely on email for communication, marketing, transactions, or support. One of the most frustrating issues is when legitimate emails end up in recipients’ spam or junk folders, where they are likely to be ignored or deleted. Two critical technologies that help combat this issue are DKIM…

Sender Score is a critical metric in the world of email deliverability, functioning as a reputation rating assigned to outbound mail servers based on how trustworthy they appear to recipient systems. Developed by organizations such as Validity (formerly Return Path), Sender Score evaluates a sending IP’s history and behavior across a wide range of signals,…

Setting up Gmail for use with a custom domain through Google Workspace involves configuring the domain’s MX records to point to Google’s mail servers. MX, or Mail Exchange, records are a vital part of the DNS configuration that tells the internet where to deliver email for a specific domain. When properly configured, these records direct…

A damaged email sending reputation can be devastating for any individual, organization, or brand that relies on email as a communication tool. This reputation is the measure of trust that Internet Service Providers (ISPs), spam filters, and receiving mail servers place in the sender, and it directly influences whether messages are accepted, delivered to inboxes,…

The success of an email program is increasingly measured not just by the volume of messages sent or the technical correctness of the infrastructure but by the quality of recipient interactions. Email engagement metrics—such as open rates, click-through rates, reply rates, unsubscribe behavior, and spam complaints—play a pivotal role in shaping domain reputation. This reputation,…

Email Service Providers, or ESPs, are responsible for managing the flow of email from senders to recipients across an incredibly vast and dynamic global network. Whether it’s Gmail, Outlook, Yahoo, or a specialized provider catering to enterprise users, ESPs act as gatekeepers, deciding which messages are delivered to inboxes, flagged as spam, quarantined for review,…

Configuring a custom email domain using AWS Route 53 provides organizations and individuals with the flexibility and control needed to manage professional email communication. Route 53 is Amazon Web Services’ scalable and highly available Domain Name System (DNS) web service. It enables users to register domain names, manage DNS records, and route internet traffic effectively.…

Hybrid email systems combine multiple email delivery and storage platforms into a single, cohesive infrastructure, often blending on-premises mail servers with cloud-based services. This architecture is increasingly adopted by organizations seeking to maintain legacy systems, meet compliance or data residency requirements, or achieve greater flexibility and control. Central to the effective functioning of hybrid email…