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.

4 Email Subject Lines To Learn From

Posted on (0 Comments)

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?

READ MORE »

JSON Web Tokens (Again!) and Koa.js

Posted on (0 Comments)

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

READ MORE »

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

Posted on (0 Comments)

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

READ MORE »

7 Sign-Up Opportunities to Help Grow Your Email List

Posted on (0 Comments)

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

READ MORE »

Successfully Scaling Email: Inside Commissions Inc’s Record Setting Growth

Posted on (0 Comments)

When we hit our 5th birthday last month, we started to talk a lot about scale. As we’re scaling as a company, (from number of employees to the volume of email we’re sending) our customers are scaling their businesses too. Our mission is to make sure that our customers have access to the infrastructure, technology, and personal attention they need to successfully, and continuously build their businesses. We have key programs in place so that we can ensure scaling success–like our 24/7 support team who are available via phone, chat, and email, actionable email analytics, and our expert Technical Account Management team.   We

READ MORE »

The ABCs of ISPs: How to Get Delivered at the Major Internet Service Providers

Posted on (0 Comments)

The email delivery landscape is ever changing. We all know that email deliverability is critical to the success of any email program, and one of the best ways to ensure you get delivered is by complying with guidelines set by Internet Service Providers (ISPs) (also called mailbox providers) like Gmail, Yahoo, and Outlook. ISPs like these control the flow of mail. To help with this compliance, we’ve released a new guide, The ABCs of ISPs that outlines key tactics to help you navigate the ISP landscape. Topics covered in this guide include: The difference between IP and domain reputation The

READ MORE »

The SendGrid Ruby Gem and My Mama!

Posted on (0 Comments)

A sample of the things I love are, Ruby, webhooks, and my mama! In this post, I’m putting all of them together! Let’s start with how excited SendGrid is to announce the release of the official SendGrid Ruby Gem, sendgrid-ruby! The library includes the smtpapi-ruby library created by our friend Wataru Sato of SendGrid Japan. As always, any sort of feedback is welcomed and encouraged. What better way to introduce a new library than with a hack!? My mother, like most moms I imagine, was very sad and hesitant to see her baby boy move out and start life on

READ MORE »