The Sinch Mailgun team

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...

Remember relay races in school? Just as runners pass along a baton, an SMTP relay passes along an email from one server to another. Sinch Mailgun’s free SMTP relay...

Why do we need SMTP commands and what do they do? Well, we use SMTP (Simple Mail Transfer Protocol) commands to communicate with email servers. These commands are...

Both transactional and marketing email messages can rely on sending massive amounts of email all at once. But while bulk is better when buying toilet paper, that’s not always the...

It feels like a slap in the face. Or being dumped with the “it’s not you; it’s me” line. When an email subscriber marks one of your emails as spam, it feels like a betrayal. We were doing...