Author Archives: Martyn Davies

About Martyn Davies

Martyn Davies is a Developer Evangelist at SendGrid and a creative developer based in London. He has worked in technology for over 14 years with a background in both the music industry and technology. A serial hackathon organiser, mentor and startup advisor, you’ll find him presenting, demoing, hacking and chatting at hack days, conferences and meetups in the UK & Europe on a regular basis.


Articles Posted by Martyn


Send Email from Static Websites Using Parse

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I recently moved a bunch of PHP sites to Jekyll-generated static websites that are hosted from different buckets on Amazon S3. It was a great process, but I was faced with one problem that I didn’t think about in advance: how do I make the contact forms work without having any back end processing? DOH! I could do it in straight client side JavaScript but that would be all kinds of meh, and not really the developer experience, or user experience I was looking for. I needed something more powerful. We’re big fans of Parse here at SendGrid, but up

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Are You Event Ready? Ensure You Know with Loader.io

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Our Event Webhook is a great way to get a realtime view of what’s going on with the emails you’re sending from your application. However, a sudden spike in the amount of events coming back to your app could cause problems – especially if your webhook endpoint is on the same production server as the rest of your app. It would probably be good to know just how many events your app can handle before you see some degradation in performance, or maybe you split off your event notifications collection script on a totally different server. A quick and easy way

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Subuser Reports and Other @SendGrid Tweets Answered

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Each month we get lots of tweets to our main @SendGrid account from users, potential users, and people on the hunt for free schwag. Many of these tweets are answered directly by our team of Developer Evangelists but we thought that some of the answers to those questions might be of interest to more of you, so we’re going to try and highlight a few interesting ones each month and give those answers a more permanent home. Here’s a selection from the past few weeks and their answers: Question 1: Subusers @SendGrid question: can subusers have their own unsubscription and

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Test SendGrid Webhooks with ngrok

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SendGrid’s webhooks for inbound parse (receiving email) and events are great for hacking with, but they can be difficult to test in a productive manner because you have to keep deploying your code to the live server in order to get our webhooks to hit it, right? Wrong. In this post I’m going to show you how to work with ngrok to make local development with webhooks easier than ever. Install ngrok on Your Development Machine It’s always nice when there’s a good set of installers for things like this, you can download ngrok for OSX, Linux and Windows. It’s

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Oh, Cardless: My Business Card Email App

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Due to a recent printing fail, I’ve found myself without any business cards and I’m about to head out to How To Web in Bucharest for 3 days where I’m certain I’ll meet a few folks who ask for my details. Luckily, I work for a company that makes sending and receiving emails from an application easy, so I whipped up this quick app using SendGrid and Heroku to give me a quick autoresponder on my vanity email address that will send a digital version of my business card out to whomever emails that address. It’s quick to turn around

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21 cities, 11 countries, One Year as a Developer Evangelist

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Friday 27th July 2012 was the day I concluded the interview process for the role of Developer Evangelist at SendGrid. After talking with all of the team and the VP of Marketing, my final ‘chat’ was a late afternoon call with CEO Jim Franklin. An interview that will stay with me because we hardly talked about work stuff, mostly the kind of British food Jim liked and, somehow, something about trousers. Jim wrapped up the call by saying that he should probably let me get on. After all, wasn’t the Olympic opening ceremony about to start? It was a great

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Handy Little Library to Check Legit Email Domains

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Maintaining good sending practices is key to ensuring your reputation with ISPs remains high and your emails get through in a timely manner Our sending practices documentation states: Typos happen. Pre-screen the email addresses you collect before you send the invitation. Ensure addresses are syntactically correct, and that the domain part of the address has a DNS MX record (which indicates that the domain accepts mail). Even if you do all the appropriate checks on the client side, such as checking for valid formatting, you’re still going to end up with some addresses in your system that are probably less

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