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.

Tips and Tricks to Stay Out of the Spam Folder – Q&A #2

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As we mentioned in the previous Q&A follow-up post, we received so many great questions during our webcast, Tips and Tricks to Stay Out of the Spam Folder, we had to wrap them up in two different blog posts. Even senders with the best intentions (sending wanted email) can end up in the spam folder. To finish off the Q&A, our presenter, and Senior Technical Account Manager, Melanie Rowe, took the second half of questions we received to answer: Q:  Do you need all three authenticating practices (DKIM, SPF, and DMARC)?  A:  The two main methods of authentication that you should implement are

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Geographic List Segmentation With Event Webhook

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Do you have an email list and want it segmented by geographic location? This blog post has got you covered! To accomplish this task, we take advantage of SendGrid’s Event Webhook. If you’re not familiar with what a webhook is you can find out more HERE. But to give a brief intro, webhooks are reverse API calls. Normally, when your application takes advantage of SendGrid, it tells us through our API to send out a marketing campaign or maybe some type of account notification email. With webhooks, SendGrid now sends YOUR application data. Event Webhook   This webhook will send your

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FamilyPet Finds a Loyal Partner And Increased Delivery With SendGrid

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“SendGrid is reliable, affordable, and a great tool for anyone who relies on email to drive their business.” –Jared Katz, President/Co-Founder FamilyPet is a strategic marketing company within the pet industry providing great resources for pet owners and businesses in the United States. The FamilyPet network consists of several pet-focused sites including familypet.com, pet matching service, Petsitting.com, and daily deals site, Coupaw.com. The Challenge: Delivery and Price The FamilyPet network sends up to 20 million emails per month with 500,000 emails sent daily to their daily deals customers alone. From marketing newsletters and promotional email to a series of transactional messages

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Tips and Tricks to Stay Out of the Spam Folder – Q&A

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We had a crazy number of great questions during our webcast Tips and Tricks to Stay Out of the Spam Folder last week. So many that we couldn’t get to them all! Our kickass presenters Melanie Rowe and Rob Piers put their heads together to answer some remaining questions we didn’t have time to get to during the presentation. For today, we have Rob’s round of questions he decided to tackle: Q: Do you recommend Litmus for email testing? A: We do recommend ensuring your emails are optimized from a display perspective before sending them out in order to maximize readability

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Hackathons, Template Engine, and I

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If you haven’t been living under a rock, you probably know that SendGrid released Transactional Templates recently. I’ve been using them for a while, specifically for my API demos. It makes it super simple for me to customize emails for a specific school or crowd on the fly without touching any code. With Transactional Templates I don’t ever touch my code. Here is how my code looks like: Now if I want to go to HackRU and give a demo, I don’t have to change anything in my code. I can go to the Templates interface and activate the template

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5 Tips to Optimize Your Opt-In Pages

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Email acquisition is an important part of any email marketing program. A report by Custora showed that email acquisition quadrupled from 2009-2013, demonstrating that the channel is one of the strongest available to marketers. But email acquisition has benefits beyond acquiring new customers. It also helps you reduce churn and retain and nurture your existing customers. The first step to growing your list is making sure your opt-in pages are optimized, so it’s as easy as ever for potential subscribers to sign up. Here are 5 tips that should help: 1.) Make Your Opt-in Form Visible: Email sign-up forms are

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Looking Up: 5 Years of Scaling Our Technology and Our People

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Recently, SendGrid celebrated five years since we formed the company. Five years and over 270 billion emails later, I want to share some of my thoughts on some key lessons I’ve learned along the way. Design For Failure One of the biggest mistakes we made in the initial creation of SendGrid was focusing on getting a feature working, and then moving on to the next piece. While this was all well and good at low scale, once you have millions of messages going through the system every minute, the “one in a million” error cases start happening very regularly. Even

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