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.

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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Tracking Email Using Microsoft Azure and the SendGrid Event Webhook (Part 2)

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Welcome back to the second part of my series about building a Windows Phone 8.1 app to track email powered by Microsoft Azure and SendGrid’s Event Webhook. If you haven’t read part one in this series, please do so before continuing. Recap In part one, we implemented the SendGrid Event Webhook listener using C# ASP.NET hosted on Microsoft Azure. In this post (part two), we will create a Windows Phone 8.1 app that displays email tracking data via the SendGrid Web API. In part three of this series, we will send push notifications from our SendGrid Event Webhook listener when

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4 Email Subject Lines To Learn From

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Subject lines can make or break the open rates for your email. Therefore, it’s imperative to continuously test the content, tone, and length of your subject lines to see which ones work better. Often the results of your tests will surprise you and your gut instincts will be proven wrong. It is important to having data to back up your decision-making. It’s also helpful to learn from other senders. Recently, we’ve seen some subject lines that missed the mark for being too ambiguous, too forward, or too generic. So let’s take a look to learn from them: Curious What’s Inside?

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JSON Web Tokens (Again!) and Koa.js

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A few weeks ago, I wrote about using JSON Web Tokens (JWT) as an alternative method of authentication using Go. The post itself contains a basic explanation about JWT and some links for content. In this post, I want to cover pretty much the same things using Koa, a new framework for Node.js. Koa is mostly a middleware framework which uses generators (only available under the Harmony flag) to control the flow of requests. The reason I mention that it’s a middleware framework is because it doesn’t come with most of the things you would expect a framework to provide, such

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R/GA Adds SendGrid to The Software Platform Lab (SPL)

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At SendGrid, we strive to create better experiences for our customers. Our partnerships with innovative, industry-leading companies are designed to deliver on this mission. Today, we’re pleased to announce our partnership in R/GA’s Software Platform Lab (SPL). As one of the world’s leading full service digital agencies, R/GA has led the way in transforming the conventional agency business model with modern approaches to digital interconnectivity. R/GA provides innovative and interactive digital campaigns for iconic brands including Nike, MasterCard, L’Oreal, Unilever, Telstra, and Google. The Software Platform Lab helps brands choose combinations of partners from among hundreds of third-party digital marketing

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7 Sign-Up Opportunities to Help Grow Your Email List

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Last month, I shared 5 ways to optimize your opt-in pages to increase list sign-ups. But, that’s only the first step. Once you’ve optimized your opt-in page, you need to promote it so that more potential users can engage with your brand. Here are some easy ways to promote your list: 1. Thank You Page: Every time a visitor completes a form on your site, they should receive a “thank you” message. This is an excellent opportunity to include a call to action that encourages the user to sign up for your email list. Make sure to include information about the list

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