Latest stories by The Sinch Mailgun team
Which SMTP port should I use? Understanding ports 25, 465 & 587
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...
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Why is Gmail blocking my emails? How to prevent it
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...
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Designing HTML email templates for transactional emails
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...
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What is SMTP and how does it work?
SMTP, though a pillar of email delivery, often gets lost in the jumble of tech terms and acronyms. But if you're ready to send impactful emails, this is one of those acronyms that...
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Introducing engagement data for validations: reveal authentic engagement trends with predictive data
Sinch Mailgun’s latest release is an all-new validation criteria that leverages the past to give you a glimpse into the future. If you’re thinking this sounds too good to be true, we...
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