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.

5 Questions to Ask When Troubleshooting Email Delivery Problems

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Yikes! Your delivery rates are low and you don’t know what to do. Before you panic, remember that email deliverability is a tricky business. Accept the fact that there is always a chance that one of your campaigns will fall victim to the spam folder. Even the best senders meet with a delivery failure or two every now and then. To help, here are the 5 questions you need to ask yourself when troubleshooting email delivery problems. #1: Do you know your email sending reputation? You know this already, but it’s worth repeating. ISPs make filtering decisions based on your sending

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The 4 S’s of a Good API Demo

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Guy Kawasaki’s “The Macintosh Way,” is packed with good advice and is a quick read that you should absolutely check out. You can get The Macintosh Way as a free download. In it, there’s a chapter called “How to Give Good Demo,” where Kawasaki suggests that good demos should be short, simple, sweet, swift, and substantial, and that starting with a script that satisfies these requirements is the foundation for success. As sound as Guy’s advice is, we face different limitations than he faced in 1983. Our audiences have a way to tune out a bad demo instantly by grabbing

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Why HackRU Is My Favorite Hackathon

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My all-time favorite hackathon took place this past weekend at Rutgers University in New Brunswick, NJ. Now, I’m definitely biased this being my alma mater and all (plus having helped plan and run it for a year and a half :P) so please keep that in mind with what follows. Here are a few things that I think HackRU continues to do well. Scale naturally At no point has HackRU “tried to get bigger.” Bigger does not always mean better when it comes to hackathons. As attendance grows, it becomes much harder to provide an exceptional experience. The very first HackRU

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Hacking Health With SendGrid and SMS

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I’m trying to drink more water starting today. There are several reasons behind it, but the top one is to make my mom happy. Mothers are somewhat hard to please. At least mine is… I’ve attempted this in the past, but it didn’t end up well. In my first attempt, I had alarms set up at every single hour. This obviously didn’t work since alarms are a bit annoying. I would be in a meeting or having a conversation, and my water alarm would start ringing. Awkward… Since I still want to accomplish this, and alarms shouldn’t step in the

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SendGrid Shares Data Around European Email Opens

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In August, we celebrated the 32nd anniversary of email by releasing some unique email statistics from our data set here at SendGrid. We shared email open rates by device and region and predictions on the future of app-generated email, spam filtering, and email quality. Now, we’d like to share some more specifics focused on email opened in Europe. Collected over two 10-day periods in 2013 and 2014, this SendGrid data set spans more than 8 billion emails sent by over 125,000 companies. Here are some highlights from the data shared by our team: Tablet usage for emailing continues to increase

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How I Value Open Source (Part 1)

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This article is a personal look at Open Source, and how I value it. Part 2 will be a deeper dive into Open Source. Its true values, success stories, horror stories, licenses, and much more. Make sure you come back to read that one! I gave a talk last week at WXG 2014 on “The Value of Open Source.” This topic is something near and dear to all of our hearts here at SendGrid, and was definitely an eye opener for me; revealing a lack of Open Source uptake in the developer community. Around 1/3 of my audience didn’t embrace Open Source

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The Top 7 Tech Posts of August and September

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Our tech posts are written by our developer evangelists as a way to inform readers about some of the great things they are doing. Oftentimes, this means hacks they’re working on using SendGrid, events they’re attending, or how they’ve used SendGrid with another great piece of tech. Over the last couple months, we’ve tracked our most popular technical posts, and we’ve compiled them here. Check out what people have been reading and learning about: 1. The SendGrid Ruby Gem and My Mama! by Eddie Zaneski – This introduction to the new SendGrid Ruby library also features a hack that Eddie created

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