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Sending bulk emails requires quite a bit of finesse and care. Several factors add to the complexity, including throttling and rate limits set by mailbox providers to control the flow of emails, data protection laws that must be adhered to, and deliverability issues...

You already know that email isn’t a send-and-forget thing. When you’re sending a message, you want to know how to track it and respond to any issues, right? After all...

Unlike marketing emails, transactional emails (such as order confirmations, shipping notifications, and password resets) are triggered by specific user actions and provide real-time updates on their interactions with your platform. They help build trust, cut down on support questions, and make for a smooth shopping experience. In this tutorial, you'll learn how to build a transactional email workflow for order confirmations using Mailgun's API.

Email authentication protocols like SPF, DKIM, and DMARC verify sender identity, prevent spoofing, and support a strong sender reputation. This post explains how these protocols work, how to configure them, and how to confirm they’re set up correctly...

It's a common question that we receive here at Sinch Mailgun about SMTP port numbers. To ensure connectivity to our Simple Mail Transfer Protocol (SMTP) endpoint, Mailgun...

Whether you’re migrating from a legacy provider, other platform, or an in-house tool, one thing’s always true:

Styling HTML email templates is painful. Tables, inline CSS, unsupported CSS, desktop clients, web clients, mobile clients, and various device sizes are all things that influence...

SMTP, or

, is the language servers use to talk to each other when sending emails. When something breaks during that conversation, the server returns a code to explain what happened. These

offer valuable insights, helping you figure out what went wrong and how to fix it...

If you thought you were finally getting a break from the sender requirement conversation after the industry shift brought by Google and Yahoo last year, not quite. Microsoft is stepping up to the plate. In its April 2, blog, Microsoft announced new...

It's frustrating as an email sender when your messages don’t get through. Especially if you don't know why it's happening. In this article, we’ll dig into why Gmail may be blocking...