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.

12 Days of Holiday Sending: It’s a Wrap!

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Alas, we’ve reached the end of our 12 Days of Holiday Sending journey. Thanks for joining us! The holidays are a perfect time to evaluate your email program and make sure your subscribers see value in your emails. After all, their engagement is key to strong email deliverability. To recap, here’s a digest of the holiday email tips we’ve shared over the past few weeks:   #1. Content – What are you saying in those emails? Stay consistent with your brand. Personalize the content. #2. Volume – How many times are you contacting your subscribers? Build up volume while staying relevant. Don’t be

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Code Challenge: Listen to Incoming Emails with Twilio

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A lot of cars now provide you with Bluetooth connections to your mobile phone. This gives you the ability to play music from your phone as well as make and answer phone calls. This made me think, what if we could extend this ability to listen and respond to incoming emails? I found it’s actually possible by turning on email forwarding and implementing the SendGrid Parse Webhook and the Twilio API. Ingredients Twilio Account: Twilio is a voice and messaging API service. We use their service to call our phone and dictate the email. SendGrid Account: We use the Parse

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12 Days of Holiday Sending: Don’t Stop Testing

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To close out our final section, metrics, in our 12 Days of Holiday Sending series, I want to re-emphasize a point that Kate made around testing in our ninth day of sending. “Your subscribers matter, and learning what they respond to best is just one way to show them you care.” In order to show your subscribers that you care, and in order to optimize your emails as best as possible, you need to make testing your emails a part of your daily practice. Kate stressed the importance of testing one element at a time, but that doesn’t mean that once that

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Prevent Holiday Email Unsubscribes

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It’s that time of year again! Where every night means a different party, the kids remember at 9 PM they signed up to bring 24 cupcakes to class the next day, the list of gifts to be bought is growing, and that holiday ham isn’t going to cook itself. Holidays are amazing, but they undeniably deliver an additional layer of stress that can push people to the edge. By giving your subscribers an option to down-subscribe over the holidays, you can keep them on your list the rest of the year! Our Deliverability Consultant Luke Martinez explains in our latest Webcast Byte

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12 Days of Holiday Sending: Watch Your Metrics

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On the eighth day of sending, I talked about the importance of listening to what your subscribers want—that low engagement rates and high spam complaints and unsubscribes can be a sign that you need to adjust your content. But how do you find this data and what other metrics should you be looking at? Today, on the tenth day of sending, I’ll break down a few more of these metrics and how you can access them using SendGrid. When talking about engagement metrics, two to really focus on are open and click rates. Opens are an indicator of interest in

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12 Days of Holiday Sending: TEST!

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We’ve officially made it through to our last topic in our 12 Days of Holiday Sending series and no offense to the first three, but I think we saved the best for last–metrics! I mean how else are you supposed to prove the astonishing success of your email program if you have no stats to back up your claims? So today we’re opening our metrics section by talking about testing. I’m sure you’ve all heard how important testing is, but in the off-chance you haven’t, let me explain. Testing is what takes your email program to the next level. By sending out virtually

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12 Days of Holiday Sending: Listen To Your Subscribers

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For our eighth day of our 12 Days of Holiday Sending series, we’re closing out our “Subscribers” section with a reminder to listen to what your subscribers want. If you’re noticing that your subscribers are not engaging (clicking, opening, sharing, replying) with your emails, or even worse, if you’re seeing lots of unsubscribes or spam complaints, it’s time to take a look at your sending frequency and most importantly, your content. Are your low engagement rates and high unsubscribes telling you that there is a disconnect between what you’re promising your subscribers and what you’re delivering? Do a deep dive

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