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.

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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Marketing Email Inspiration: Short & Sweet From Of a Kind

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As a resident email nerd here at SendGrid, I spend plenty of time sifting through (maybe even enjoying) our inbox. Unfortunately, not everyone shares my enthusiasm, and most recipients only spend a few seconds on each email… Seconds! When you’re given just a few seconds of time, it needs to really pack a punch! That’s exactly what Of a Kind did with today’s Email Inspiration. Of a Kind is a website that focuses on featuring new fashion designers that inspire the creators Claire Mazur and Erica Cerulo. I’ll take you through their email from the top to the bottom starting with the

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Intro to Golang

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An Introduction to the Go Programming Language (And Why I Love It) If you follow me on Twitter, you’ll no doubt know that I’m a huge fan of Go. You may have read my endless stream of Tweets ogling its brilliance, complaining about its few pitfalls, and bathing in the sweet, sweet light that is the over-indulgent default package set. But why? Why am I constantly marveling over this language, and frequently choosing it above others? I hope to clear that point up in this blog, introduce you to Golang, its wonders, its pitfalls, and introduce you to how SendGrid is

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SendGrid Announces Partnership and a Special Deal for Customers With Sendwithus

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Today, we are very happy to announce a partnership with email optimization and segmentation company, Sendwithus. Easing pain points for developers has been a longstanding focus at SendGrid. As part of that mission, we are always looking for ways to empower developers and marketers with the features and tools they need to succeed both independently and collaboratively. “When we talk with developers at growing companies, one common theme we hear is the need to provide marketing teams with more control over their transactional email—so we launched our Template Engine in May to do just that” said Jim Franklin, SendGrid CEO. “Sendwithus shares

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Template Engine Demo – Q&A

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With the announcement of one of our latest releases, the SendGrid Template Engine, we thought it would only be fitting to host a demo for our current and potential customers. Our demo provided a firsthand experience of what the new app is capable of, and showed exactly how to implement it. Within our demo, we had a lot of great questions asked during our live Q&A, and we figured you may benefit from hearing the answers as well! Our host John Vajda, SendGrid Product Manager, took some time to answer the following questions: Do I have to use the body and

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