SendGrid's Email Deliverability Blog


From email deliverability best practices, to hackathon highlights, API tutorials, and everything in between, the SendGrid blog is your destination for all things email. Browse our most recent posts in the main feed or filter by category. Be sure to subscribe to the blog to get a daily digest of posts and reach out to us in the comments to let us know how we're doing.

The SendGrid Internal Hackathon!!

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If this were a normal hackathon, I’d start this post by telling you the thirty hackers still at the event at 2:00am sat heads down, faces lit by the glow of their screens, frantically coding and debugging in a rush to finish their hacks. But this wasn’t a normal hackathon, this was the SendGrid Internal Hackathon, and instead hackers jumped on two-hundred feet of bubble wrap. The SendGrid Internal Hackathon Thursday and Friday of the last week of June, we held the first SendGrid Internal Hackathon. Technically speaking this wasn’t our first run at a hackathon for the company, but

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Checking In With SendGrid Email Support

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SendGrid sends billions of email every month for thousands of customers, so it’s no surprise that our amazing support staff handles a ton of questions. Whether it’s helping new customers integrate or informing customers of changes to DMARC policies, they handle it all. We picked a few common questions SendGrid Support received over the last month to highlight here along with their answers: Technical Email Issues Why isn’t my email-to-sms working? If you’re considering sending large numbers of SMS messages to customers from your SendGrid account, you may run into some problems. The bandwidth for SMTP-to-SMS is very narrow because

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Startup Resources

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Startups Are Everywhere We hear a lot about startups in the news, blogs, movies, and even commercials. The notion of creating a product with nothing but sheer willpower, ramen, some college buddies, and an empty garage sounds romantic. Dreams of hockey stick growth, press in TechCrunch, and Mark Cuban becoming an investor feels inevitable. In my opinion those hopes and dreams are fuel in the nascent stages of your company, but not usually what happens. It’s Hard It’s hard work finding product-market fit. That process takes time, money, and resources (commodities most startups are lacking). However, many companies such as

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Looking Back: The Top Email Posts From June

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We strive to provide helpful, interesting, and informative content about all things email on the SendGrid blog. In June, we touched on some great topics, including email security, email templates, and webhooks. In case you missed them, below is a wrap-up of the blog posts that we think you’ll find most helpful to your email campaign: SendGrid and the Future of Email Security Our Chief Security Officer, David Campbell, announced that SendGrid is now utilizing opportunistic TLS encryption to make sure that the mail customers send through SendGrid is secure. SendGrid’s Template Engine Tutorial We provided an online tutorial to guide

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Tokens & More Tokens! An Intro to JSON Web Tokens (JWT) in Go

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Recently, my buddies from Blimp piqued my interest about JSON Web Tokens (JWT). You can find very detailed specs about it here and here. In this post, I want to guide you through implementing the equivalent of sessions, but with JWT. The traditional session approach usually requires the client to store some sort of value in its cookies, while the server must have some sort of session storage where it stores that same value. For each request the client makes, the server has to make a network trip to check that the cookie’s value is in the session storage. What if there

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Delivering Beers Hand Over Wrist!

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Since May 2013, we’ve partnered with our friends at Ignite in Newcastle, England, to run an event for startups, developers, tech watchers, entrepreneurs, and investors every month called Startup Beers. Recently, the Ignite team partnered with UKTI to run an accelerator programme in the newly opened Campus North. The 3-month-long Sirius programme was open to anyone who had gained their degree outside of the UK and wanted to accelerate their idea within the confines of the UK tech scene. After being asked to mentor on the programme, I was extremely interested in one company in particular – SunEos, two French

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DIY Email: Where to Start

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My family owns a granola business. Olde Man Granola is a relatively new company – about 5 years old. I’ve watched them work so hard for little personal gain. They do everything themselves, including small-scale marketing if/when they have the resources. Their focus is making delicious granola. Those involved have families, work multiple jobs, and one is a full time student. I often find myself brainstorming what the best way to help them would be. “Do It Yourself” Content Marketing A couple of weeks ago, I had the opportunity to attend the inaugural Denver Digital Summit. I was looking forward

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