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.

Web API or SMTP Relay: How Should You Send Your Email?

Ellie Johnson Product
email stock

SendGrid’s Web API and SMTP Relay are the two primary methods of integrating with, and sending email through SendGrid. You can think of their differences like methods of delivering a package: you could send a package in the mail, or you could drive it to the destination yourself. While the methods of delivery are different, the end result is the … Read more ›

Everything You Should Know For The First 48 Hours of a New Job

Ken Apple Company

The following is a post from VP of Support and Business Operations, Ken Apple, and People Operations Generalist, Emily Staebell, who run our new hire onboarding at SendGrid. Below are a few lessons we compiled from facilitating the onboarding sessions in 2015 for 115 new SendGrid employees (we call these newbies “Gridders”). These Gridders have gone on to be some … Read more ›

Gmail’s TLS Encryption Padlock: What It Means for Senders and Recipients


On Tuesday, February 9, as part of Safer Internet Day, Gmail announced a new TLS encryption padlock in messages sent and received in Gmail. Our Chief Security Officer, David Campbell, and I collaborated to share our thoughts on the update, below. Google’s Gmail team has been using their effective spam filtering as a product differentiator, and it’s a winning strategy. They’re now … Read more ›

Your Top Email A/B Testing Questions, Answered

Best Practices
Email Testing

We had a flood of great questions come in at the end of our webcast Stellar Email Marketing: A/B Testing and CTAs that our presenters Carly Brantz and Jillian Wohlfarth didn’t have time to answer. If you missed it, Jillian answered the CTA focused questions in her latest post and to wrap everything up, Carly answered the A/B testing questions for us below! Q. … Read more ›

Email Marketing 101: The Welcome Email

Email Marketing
Email Marketing 101: The Welcome Email

Your welcome email introduces your subscribers to your email program. It’s your way of saying “hello” and is arguably the most important message you’ll send to your subscribers. To provide more context on why, how, and when you should send welcome emails, we created a new SlideShare, Email Marketing 101: The Welcome Email (below). Whether you’re new to welcome emails, or an expert looking for a refresher, … Read more ›

Using a Prototype as an API Product Specification


As the Developer Experience Product Manager at SendGrid, I am tasked with identifying opportunities, features, and products that involve our API. One thing I have been working on is identifying methods to make communicating my product ideas to the other PMs, Engineers, and customers more effective. I have learned that a monolithic Product Requirements Document (PRD) is a less than … Read more ›

Customer Spotlight: Bandsintown


At its core, Bandsintown enriches lives by connecting fans with the artists they love. Through the Bandsintown Concerts app, users are able to track artists they love to listen to, and see when they’re coming to town and where they’re performing. Today, over 20 million music lovers have registered with Bandsintown to track their favorite artists and learn about upcoming … Read more ›

Learning From Black Friday and Cyber Monday: Discounts in Your Subject Lines

Best Practices
Chart of engagement with subject lines that have discounts.

According to The Washington Post, email marketing drove 25% of all online sales on Black Friday. Meanwhile, PracticalEcommerce is reporting that email advertisements accounted for 22% of Cyber Monday orders. Even though Black Friday and Cyber Monday happened a couple months ago, SendGrid’s Data Scientist, Victor Amin, has been looking at the marketing email SendGrid delivered during the largest shopping … Read more ›

5 CAN-SPAM Myths & Best Practices: From a Lawyer’s POV

Michael Tognetti Best Practices
killer email

As a lawyer, one of my favorite party tricks is to correct people who misquote the law. I don’t get invited to many parties. In casual conversation around our busiest SendGrid office, I often hear misstatements of the law, particularly the relevant CAN-SPAM Act (Controlling the Assault of Non-Solicited Pornography and Marketing enacted in 2003) and I’ll start the awkward … Read more ›