Mailgun blog

In the report, over 4,000 consumers and business leaders weighed in on the challenges and opportunities for customer communications in 2025. The top challenges?

If you’re looking for a new ESP, this post breaks down six top-tier SendGrid alternatives. We’re looking at things like reliable email APIs, transactional messaging features, and varying levels of deliverability tools. Whether you need...

We’ve evaluated five of the most reliable email service platforms offering free tiers. Each provider has a different take on what “free” means, so we’ve broken it down for clarity.

Any developer or systems administrator worth their salt will usually start their troubleshooting process with a simple question: "Have you checked the logs?" Debugging for any application or system service often starts with looking at the logs to...

In the report, over 4,000 consumers and business leaders weighed in on the challenges and opportunities for customer communications in 2025. The top challenges?

If you’re looking for a new ESP, this post breaks down six top-tier SendGrid alternatives. We’re looking at things like reliable email APIs, transactional messaging features, and varying levels of deliverability tools. Whether you need...

We’ve evaluated five of the most reliable email service platforms offering free tiers. Each provider has a different take on what “free” means, so we’ve broken it down for clarity.

Let’s say you’ve integrated your app with email functionality, designed some great email content, developed a marketing strategy, and you think you’re good to go. But then you...

Any developer or systems administrator worth their salt will usually start their troubleshooting process with a simple question: "Have you checked the logs?" Debugging for any application or system service often starts with looking at the logs to...

What’s sender reputation? Glad you asked. In this article, we define what sender reputation is and its components, we’ll cover our top tips, and some of the most common mistakes...

Over the past few weeks, a rising number of Mailgun customers (and industry peers across other ESPs) have encountered bounce messages. In short:

And when it fails, Outlook blocks the message, even if it meets standard DMARC policy of p=none...

Email authentication lets mailbox providers know that you’re a trusted sender – that you are who you say you are. As a Technical Account Manager at Mailgun, I’m constantly...