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.

Email Reputation 101: IP Reputation vs. Domain Reputation

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Email deliverability is influenced by a lot of factors, including signing your mail, keeping clean lists, sending wanted content, having a good sending reputation, and much more. Your sending reputation is how ISPs identify you as a legitimate sender. Every time you deploy an email campaign, you are providing them with valuable data that says whether or not you follow proper sending practices. There are two types of email reputation—IP reputation and domain reputation. Let’s take a look at the difference between the two and why paying attention to both is important. IP Reputation Email is sent from IP addresses,

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Improving Deliverability of Business-Critical Email

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When your phone doesn’t ring, there are two possible causes: either it’s broken, or no one is calling you. The same is true for email. When you send messages to customers, employees, or partners, how do you know that it got there? This Tuesday, October 8th Paul Robichaux, Senior Contributing Editor for Windows IT Pro and Kurt Diver, Enterprise Deliverability Analyst at SendGrid will share their expert insights into the importance of tracking your email delivery and will cover the steps you can take to improve your email performance in a free webinar. Paul will lead off the webinar by

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Personalized Music Metrics from Pandora

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I love my music and I love great emails, so this Email Inspiration post was a no-brainer! Sometimes, an awesome radio station can be the thing that gets me through an 8 hour workday, and I know that I’m not the only one who feels this way. Looking around the office here at SendGrid, I estimate 90% of employees have headphones/earbuds in at any given time. What we’re actually listening to is a different conversation, but music is a staple around here. When I work with music on in the background, I sometimes don’t even pay attention to what’s playing on the

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Connecting Inbound Email to Google Spreadsheets

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One of the questions I get asked a lot is how to get information from incoming emails entered into a Google Spreadsheet. In this post, I’ll show you one implementation on how to do this with the gspread module in Python. Getting Started with Our Parse Webhook The first thing we need to do is tell your domain that SendGrid will handle the email on its behalf. Then we tell SendGrid where to post the data from the email: Modify MX Records Change the MX Records of your domain to point to mx.sendgrid.net. This lets the registrar know that SendGrid

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How to Write an Email Call To Action (CTA)

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You work so hard on your email strategy with one primary goal – to get a response. However, some subscribers continue to elude you. What if you could fix that with your call to action (CTA)? CTAs are one of the most important pieces of copy you write, but can sometimes be the most neglected. Instead of redesigning your entire email strategy, why not add to it? Re-examine your CTA to see if a few tweaks can give you the desired lift. We share several tips in our new guide How to Build a Strong Email CTA, but here some tips

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Double Opt-In Email With Node.js

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To get a good reputation as a sender, one of the email best practices we encourage our users to implement is the double opt-in. It’s actually a very simple practice: after a user gives you his/her email, you store their information with an authentication token and a boolean variable. The authentication token is just a randomly generated value. After the user signs up for your newsletter or service, you want to send a simple email asking them to click on a link. This link will have their token and take them to a URL that will make a request to the

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Spam as Overcommunication: Preventing Unsubscribes and False Spam Reports

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As you continue to innovate your app, it’s easy to want to reach out and update your customers about your innovations as much as possible. Unfortunately, this can be a mistake. When you communicate too often with your recipient list, you can dilute the importance of your messages and annoy your recipients because you’re flooding their inboxes with information that may not be relevant to them. This frustration from over communication often leads to recipients re-thinking their subscription or even flagging you as a spammer. While you may only want to inform your list, recipients may not want all those emails.

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