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.

Play Reversi Using SendGrid

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The following is a guest post by Wataru Sato, a developer who works with SendGrid in Japan. He has a blog at http://awwa500.blogspot.jp/ and you can find his GitHub page here: https://github.com/awwa. I’m from Japan and work with SendGrid there. SendGrid is a powerful email service that sends a large number of emails every day. However, SendGrid’s APIs can also be used for fun! Today, I created a game using SendGrid. It’s called SendGrid-Reversi, and it let’s you play Reversi entirely over email! It runs on Sinatra, the data is stored in MongoDB, and the functionality is built on top of the various

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SendGrid Accelerate: Startup Beers, Newcastle

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As part of the SendGrid Accelerate program, I spent a day up in Newcastle, UK mentoring teams on the Ignite100 accelerator based out of the community backed, and absolutely huge, Campus North workspace. We have a great relationship with Ignite and Campus North. We work together to run a fantastic networking event for northeast-based startups and developers called Startup Beers. The event is now well over a year old and shows no signs of slowing down, or being any less helpful for teams looking to meet new colleagues, or developers, or just to get some feedback on their ideas. Whilst

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Send Emails That Don’t Bite With Barke

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People are different. They read their email at different times and in different ways. But it’s not easy to track and react to different users’ habits. That’s the idea behind Embarke, a partner of ours that optimizes the delivery time of each email you send. Embarke mimics our Web API and then consumes data provided by our Event Webhook to allow users to continue sending through SendGrid with minimal changes on their end. To start using Embarke, all one needs to do is change their endpoint from: https://api.sendgrid.com/api/mail.send.json to https://esp.embarkemail.com/sendgrid/api/mail.send.json and pass in a few extra values through the x-embarkeapi

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After 32 Years, Email Still Dominates

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Over the 32 years since email was invented, it’s grown in a way that few other technologies have. From something that was only used internally at organizations, email is now a necessity for everyone. As the world’s leading email delivery service, SendGrid is in a unique position to see how email continues to grow, and where it’s headed in the future. During 2013 and 2014, we collected data over two separate 10-day time periods, creating a data set of over 8 billion emails sent by more than 125,000 companies. From that data and from speaking with our own email experts,

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Help Your Customers Get Better Email Deliverability Rates

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The following is a guest post from Jesse Wynants at Prezly. Learn how Prezly has leveraged SendGrid to send email on behalf of their users as part of our Marketing Solutions Partnership below, and learn more about Jesse and Prezly at the conclusion of the post. We’ve been using SendGrid since June 2011 to send email on behalf of our users. This means that users use our service to send email, but their own email address is in the FROM address. (Essentially, SendGrid provides the backend email infrastructure, while we provide our frontend PR services.) Sending emails on behalf of

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Baligam Uses SendGrid to Send Over 18 Million Messages Each Month

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Founded in 2010, Baligam is Israel’s top daily deal site. Every day, they provide their subscribers with thousands of deals they can take advantage of. In order to do this, Baligam uses a few different SendGrid functions. Baligam’s primary emails consist of three different types of deal newsletters: daily, tourism, and flash sales. These newsletters are the source of Baligam’s customer communications and revenue. In addition to these marketing email communications, Baligam also uses SendGrid for their transactional email needs. User registration, subscription confirmation, password change notification, and shipping and order confirmation emails are all automatically sent through our SMTP

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5 Years and 273 Billion Emails

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This summer, we’ve been celebrating the five-year anniversary of SendGrid. Part of that celebration has been looking at some of the major scaling milestones and accomplishments of our customers and the company through retrospectives, webcasts, and an infographic, all shared in part, below.  Scale A big part of helping our customers scale has been learning from our own growth. Since graduating from TechStars, SendGrid has grown from 3 employees to 250 and from 0 emails sent to 273 billion. Throughout this time, we’ve learned that reliability, support, and providing a powerful infrastructure are critical to supporting large email volumes–2% of

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