Mailgun blog
Helpful articles to optimize your email program.
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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Cover your bases with email and SMS for transactional messages
Every hero needs a sidekick they can count on to help save the day. A solid sidekick always has the hero’s back, and many times, they also have skills that complement their...
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What to look for in a transactional email provider
For many developers, transactional emails have been the go-to method to send timely website and application notifications and alerts about abandoned cart reminders, order...
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What is M3AAWG, and why you should get involved
Every company is trying to achieve growth and be more recognizable and the protection of that journey can be incredibly challenging. There are times when everybody considers...
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Apple Mail gets a makeover: iOS 18 updates to the inbox
Senders have just been hit with a change of requirements from Gmail and Yahoo, and now Apple Mail is sliding in with updates of its own to the inbox. Where will your messages...
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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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The basics of email subdomains
When it comes to email sending, sometimes you need more than the press of a button to get your message across. You may have heard of email subdomains, but you may be...
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We went to Unspam! Here’s what we learned
Here’s how Really Good Email’s describes Unspam, A rebel conference for email folks who hate boring conferences… unexpected, unconventional, and unforgettable. We know that...
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The golden age of scammers: AI-powered phishing
Long live the prince of Nigeria, he had a good run. Gone is the age where scammers wield the same mediocre power as a snake oil salesman, reliant on their own persuasion and...
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“Email failed to send” – understanding the error message?
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...
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