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.

Update on Recent BTC Attack: What Users Can Do To Prevent Attacks

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Yesterday afternoon, the SendGrid account of a Bitcoin-related customer was compromised and used to send a phish, baiting them to transfer Bitcoins to multiple bad actor accounts, promising interest payments. We worked with the customer to help them recover control of their account and to minimize the damage of the attack. This incident was an isolated attack on one SendGrid customer. A NYT Bits Blog post has reported that users of other Bitcoin-related businesses have been targeted this week with phishing attacks via other email service providers as well. SendGrid encourages ALL of our customers to enable two-factor authentication, which can

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How to Open Source Your Code in 11 Steps

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Before you open source a library, there are a few things that you need to do to ensure you’re following all the rules and that the code is ready for the community. Here’s the 11 step pre-flight checklist that we put together internally at SendGrid: Check the code to make sure that no proprietary information like usernames and passwords are present, and that configuration uses environment variables where necessary. Your code isn’t portable if there are hardcoded database names and credentials. Environment variables are convenient and are a secure default. Make sure that dependencies are encapsulated and explicitly declared. People

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TheLadders Have Found that SendGrid “Just Works”

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If you’ve ever searched for a job, there’s a strong chance you’ve used TheLadders. Beginning more than 11 years ago, TheLadders ventured into the job site market by providing job seekers with a place they could go to view positions that earned $100,000/year or more. Today, TheLadders aims to help job seekers of all types find the best position possible for them. More than 7 million people are using their site to look for new positions from over 86,000 employers and recruiters. As a result, TheLadders send more than 170 million emails every month, informing people of new jobs. Sending this volume

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Announcing New Email Delivery Tools in our Deliverability Center

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Earlier this year, our support incubator team released our new Deliverability Center. We set out to start capturing a definitive list of bounce reasons and their respective solutions to help our customers solve deliverability issues. Since then, we’ve seen a ton of people visiting and submitting new bounce reasons for us to help with. We’re very pleased with the adoption so far! Behind the scenes, we have a team of support agents and developers committed to making this tool the best it can be. Keep on submitting your bounce reason codes, and we’ll continue to dish out answers. Now, we’re

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5 Traits All Email Marketers Should Have

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Whether you are aspiring to be an email marketer, or simply looking to hire one, you should be aware of some common basic traits that all individuals who are heavily involved in email should have. After looking at numerous job postings, here are the 5 most common and important traits we found: 1. Attention to Detail – Anyone specializing in email will need extremely solid and detail-oriented copywriting and editing skills. Corporate emails are expected to be perfect grammatically, and when there are errors in a business email, it can drastically change the reader’s impression of the company. 2. Flexibility –

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Changing Your Email Marketing Platform? Remember These 3 Things…

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So you’ve decided on a new email marketing platform for your business. Congrats! Whether you found a new solution out of need or due diligence, navigating today’s landscape and picking one of many email service providers is a big part of the battle. But your job isn’t done…depending on the history with your previous service, there are several important pieces you’ll want to include in your transition to the new platform. Here are 3 things to keep in mind: 1. Your assets: Images When it comes to your email images and templates, starting fresh with a new platform gives you

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A DKIM FAQ from SendGrid’s Email Compliance Team

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Making sure your email is getting delivered to the right person at the right time in the right frequency with the right message is the key for email deliverability. SendGrid’s email compliance team lives and breathes all things email, but we also know that not everyone shares our passion and knowledge. To better help you get your next email delivered, we’re providing the most frequently asked questions and answers about DKIM: What is DKIM? DKIM stands for Domain Keys Identified Mail. It is a cryptographic technology created by Cisco and Yahoo. DKIM is the 2nd version of this technology, the original version is

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