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: Who Are Your VIP Recipients?

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On our seventh day of 12 Days of Holiday Sending, we’re talking about the loaded question: Who are your VIP recipients? I have a few emails that come to my inbox that I open every single time I see them arrive, without fail, because I can’t wait to read them! Two specifically come to mind: a daily news digest for young professionals, and an email update to a daily deal pop-up shop I stalk. I open the email, I click through, and on a very regular basis (at least for the daily deal site) convert to a sale. For those

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SendGrid Announces New Feature: IP Pooling

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The software engineers at SendGrid have been very busy recently, as evidenced by the host of new features that have been added to our market-leading email delivery platform, including improvements to our security, deliverability, and email sending capabilities. While 2014 is coming to a close, and many out there are slowing down and getting into the holiday spirit by giving gifts, going to parties, and taking vacation, our team is still cranking! I’m pleased to announce yet another update to our platform: Automated IP Pooling.  Our new IP Pooling API endpoints will allow you to create unique IP Pools and

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Code Challenge: Adventures in VIM

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As developers, we all use different text editors when writing code. This post isn’t meant to say VIM is better than emacs, sublime, etc. VIM is just the editor I switched to a while back, and I wanted to go through some awesome resources that I’ve use to become a better “VIMMER.” For this post, I’m going to walk through some VIM basics that I think the beginner needs. Afterwards, I’ll walk through some great resources. Basics to Get Started The first thing you’re going to notice when you open VIM is that you can’t start writing code. This is

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12 Days of Holiday Sending: Use Good List Hygiene

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For our sixth day of our 12 Days of Holiday Sending, we’re focusing on good list hygiene! If you’ve never heard of using good list hygiene, it means to clean your list of old and unengaged email addresses that you may be sending mail to. If you think of good hygiene practices you run through personally, like washing your hands and brushing your teeth, it’s daily maintenance to keep everything in working order. The equivalence of doing that for your list is to comb through and remove email addresses that aren’t benefiting your list in any way. These “bad” email addresses could

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Code Challenge: Add Machine translation to SendGrid for communicating with your International friends.

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For todays post I wanted to explore a use case for the SendGrid API, that I personally don’t see too often. That use case is mashing up a Machine Translation API with our mail API and webhook. I want to create an email address that lets me communicate with my coworkers and friends that I have been lucky to make in Brazil. How this will work: I’m going to create an application that will translate any email that I send out into portuguese. Any email that gets sent to that address will be translated back into english. The concept is pretty simple

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12 Days of Holiday Sending: Watch Your Sending Frequency

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On the fifth day of our 12 Days of Holiday Sending mini-series, we want to close out our volume section with a quick note on frequency. When I wrote on Monday that you need to build up your sending volume, those tips go hand in hand with your sending frequency. We understand you’ll most likely have more mail you’d like to send over the holidays, which results in a higher sending frequency, BUT you need to watch your metrics closely to make sure you’re not exhausting your recipients with too much mail. The holidays are awesome, but they also bring some additional stress for

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SendGrid’s Secret Santa & Friends

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Many of you have have probably participated in X-Mas Gift Exchanges. If not, we should solve that! Here at SendGrid, we use Elfster and it works great. My friends and I have been doing an alcohol exchange recently. I thought this was a simple problem to hack on and use some of the SendGrid features. So I did! I’ll try to explain all the steps that I took to create our exchange system. First, I created a simple transactional template in SendGird’s Template Engine. Yes, the content is in Spanish Notice that I have #recipient# in the content. That’s because I

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