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.

October Recap – The Top 5 Email Best Practice Posts

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As an email sender, the best way to ensure your messages are delivered, opened, and engaged with, is to make sure you’re implementing the right email best practices. Below is a list of the top best practice posts from October. Whether it’s implementing great new calls to action (CTAs), tips on how to grow your recipient list, or examples of emails that work, we’ve got you covered: 6 Steps to Grow Your List Authentically Why it’s important to grow your recipient list the right way. In general, you never want to obtain a list, so growing it the right way

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The Value of Open Source (Part 2)

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I wrote a few weeks ago about How I Value Open Source, the first part in this two-part blog series. The post covered my own thoughts on Open Source (OS), and its values to me. This post aims to cover more real-life fundamentals of OS, a deeper dive into OS and of course, the business value that lies in OS. I’ve also included a video from my original presentation about Open Source for WXG 2014 at the bottom of this post! Defining Open Source… If you look up the term Open Source (OS), you’ll probably find a bunch of articles telling

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SendGrid Mentors at TechStars Patriot Boot Camp

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As a member of our Developer Relations team, we get the awesome opportunity to work with some really motivated developers and startups. However, every now and then we get the opportunity to do something a little different that has just as big of an impact. Recently, we were able to lend a hand in a really great boot camp. My co-worker, Eddie Zaneski, and I had the privilege of attending TechStars Patriot Boot Camp in Madison, Wisconsin. We helped mentor some really badass veterans and got the opportunity to give some talks to impart wisdom from our past experiences and talk a little

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4 Things That Developers Want From Products

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The following is a guest post from Martin Gontovnikas at Auth0. Learn more about Martin at the bottom of this post. Today is a great time to be a developer. I remember 7 years ago, when I had to build an application, I had to take care of getting an SMTP server, integrate with an awkward payment gateway, build my own datacenter, implement the authentication and user management backend, and so on. In the last couple of years, my life has become much simpler. In this blog post, I will cover what I think is crucial to get right if you want to

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MythBusters: 2 Email Shortcuts to Avoid and How to Turn Them Into Wins

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Who isn’t looking for a quick shortcut or hack to improve email response rates? Marketers are constantly on the hunt for ways to improve the success of their email program. On this quest, it’s important to never lose sight of your subscribers’ wishes. Keeping them happy and engaged is the ultimate key to your success. Recently, I’ve heard about two shortcuts that I think might hinder this happiness: ignoring inactives and implementing “Re:” and “Fwd:” in your subject lines. I want to dig into why these could be potentially harmful to your email program and how you can turn them

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Docs Antipatterns (Part 2)

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I previously wrote down a few documentation antipatterns, or descriptions of commonly seen bad solutions to problems. If you’re not quite sure what an antipattern is, it’s explained in that blog post. I’d like to present a couple more documentation antipatterns to avoid, both drawn from experiences that we’ve had in the past, but have solved along the way. Antipattern: Big Ball of Mud Definition The Big Ball of Mud is a well-known antipattern in software engineering. To quote the authors who coined the term: “A Big Ball of Mud is a a haphazardly structured, sprawling, sloppy, duct-tape-and-baling-wire, spaghetti-code jungle.

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Scaling MySQL at SendGrid

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SendGrid is the epitome of catching a tiger by the tail. Our systems were not originally designed to handle the massive scale we deal with today. Adding new features at this scale also presents challenges budding companies don’t yet need to design for. With our growth and overall traffic, we have had to come up with solutions to handle challenges related to simply scaling our datastores. At SendGrid, a large portion of our data is housed in 10 distinct MySQL datastores with a total of 87 physical machines and 255 MySQL instances. We also have a varying combination of challenges

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