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.

Scaling the Customer Experience

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Earlier this month, Isaac, Jose, and Tim wrote letters about what their first 5 years of scaling SendGrid has been like. A common theme for all of them was our customers and our people. At the center of both of these is our Customer Success team. They’ve scaled tremendously over the past 5 years to ensure that our customers are able to do so as well. I wanted to learn a little more about their team and what this support looks like, so I sat down with Amy Mustoe, SendGrid’s Director of Customer Success, to get some more insight. Q:

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Young Rewired State & Code on the Road

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“It was a sea of Blue SendGrid T-Shirts. Everywhere I looked, I saw SendGrid! You guys rock!” My first answer when asked the question “What do Developer Evangelists do?” is always: We empower and nurture developers. In previous talks I’ve given and articles I’ve written, I’ve described how teaching, mentoring, empowering, and nurturing are the most important parts of my job, and there’s no age limit to which this help is confined. In the many hackathons I (and the rest of the Developer Evangelist team) travel to, I see developers of all ages and I’m never more impressed, and quite

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DonorsChoose.org Raises Money for Teachers and Students in Need Through SendGrid Transactional Email

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We’re happy to announce a brand new case study of a great SendGrid customer: DonorsChoose.org. DonorsChoose.org pioneered crowd funding for charity in April 2000. Their online charity enables people to donate directly to teachers and students in need. Through DonorsChoose.org, teachers can ask for funding for classroom projects, people can donate directly to those projects, and students in need can be better educated. Email is one of the key ways DonorsChoose,org communicates with citizen donors and donation recipients alike. Over the last year, SendGrid’s email program has helped the online charity raise more than $10 million for classrooms around the

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Learning from a Couple Email Unsubscribe “No-Nos”

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Unsubscribing is the process by which recipients voluntarily remove themselves from your email list. When a person decides they no longer want to hear from you, it’s your job as a sender to make sure the removal process is swift and easy. The CAN-SPAM ACT of 2003 specifically addresses the issue of unsubscribe. Because of the nature of transactional email, especially relative to that of marketing email, it is exempt to the guidelines of the CAN-SPAM Act.  Specifically when sending transactional emails, a company is not required to include a physical postal address or include an email unsubscribe link. Despite

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Gist Me Please?

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Do you find yourself writing technical blog posts in Markdown and exporting them to HTML? Do you end up writing GitHub Flavored Markdown and then exporting to blocks or something similar? I know I used to do that quite often. Thats the reason I created Propagandist. Propagandist is a simple tool which will parse out your Markdown and convert it into HTML. The cool part is that every Code Snippet that it finds gets replaced with a Gist for it. This produces a central Gist with all the snippets that users can jump into. Propagandist is built on top Gost

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Scaling With Partnerships

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One of the ways SendGrid has been able to scale and reach its current size is by partnering with other amazing companies and organizations. Partnerships help SendGrid reach new customers, show them how email can help their business, and add value to their email program. To understand how business partnerships are a key aspect in how SendGrid has scaled so far, we interviewed our own Laurence Trifon about the role partnerships have played in SendGrid’s scaling over the last 5 years. First, tell us about your role at SendGrid. My name is Laurence Trifon, I’m the Director of SendGrid’s Business

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NSLog(@”Updated iOS Library”)

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Most ESPs make sending email through their services super easy. On top of that, we at SendGrid have libraries for most languages/frameworks like, Node, C#, Java, etc. Last year Kunal Batra created the Objective-C library, and we had great feedback from a lot of people saying how easy it was to use. During the past couple weeks I spent some time working on the Objective-C library, and getting it more up-to-date with the others. Now, as in other languages, we have a library called “SMTPAPI,” which helps easily build the X-SMTPAPI headers for additional functionality while sending email. We also have the SendGrid

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