Category Archives: Technical

First Yahoo, and Now AOL. What Do You Need to Change to Be DMARC Compliant?

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As you probably heard last week, Yahoo updated their DMARC policy so that mail from @yahoo.com accounts will be rejected if it isn’t sent from a Yahoo server. Now, AOL announced they are implementing the same DMARC change. AOL has changed their policy to p=reject in an effort to protect users from unauthorized use and to protect recipients from spoofing attempts. So, how can this affect you? What This Means for Senders Much like we detailed in our blog post An Update on Yahoo’s DMARC Policy, if you’re sending email with AOL.com in the From address field, messages will be

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Host Your Own Disposable Email App

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I like Mailinator. I use it all the time. However, it has had some downtime recently at inopportune times for me. My friend Joël had the idea of creating one’s own personal mailinator. In this post, I’m going to show you how to do just that. It turns out it is pretty easy using modern tools. Generate a RequestBin Visit RequestBin and create a bin. Set Up the Inbound Webhook Visit SendGrid’s Parse Webhook Settings. Set the hostname to 1ii55qy1.webhook.email. Set the url to the url of the bin you created above. Send an Email Go to your email and

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Track Transactional Email in Real-time

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Historically, it was difficult to track transactional email. Developers were never sure if the email was delivered. There are various reasons email can be tripped up along the way. Email can bounce, ISPs can throttle you or you could be marked as spam. A lot of these problems can be avoided with a transactional email service, which will make sure your emails get delivered. But what about tracking these emails? Both marketing and transactional email can be extremely beneficial to a company, but flying blind to the data means missed opportunities. The type of data you can track includes notifications

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Make Your Mac Speak Incoming Emails

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There are a lot of great use cases and business applications of our Inbound Parse Webhook. But sometimes you just want to hack for fun. Since the Parse Webhook is interactive and real-time, it’s a good one for hacking. In this blog post we are going to mashup some Python, the Parse Webhook, ngrok and osascript to make your Mac speak incoming emails. Set Up Incoming Emails The general idea is: receive an email, have your machine speak the subject. To achieve the first part, we need to receive emails in our application, which is easy with the Parse Webhook.

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Job Searching for Dev Bootcamp Graduates

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The following is a guest post from SendGrid engineer Jeffrey Matthias. As a graduate of Dev Bootcamp, I am often asked for advice as fellow graduates begin their first job search. Admittedly, it can be a daunting task, perhaps harder than the bootcamp itself. Your New Job: Find a Job You want to get a job working full time as a developer? Landing that job is your new job. I don’t care what the situation is, plan to spend at least 40 hours a week on finding work and keeping your skills up. Don’t go too crazy beyond that, as

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Animated GIFs Inside Your Inbox

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Want to bring a smile to your face? Try sending yourself an animated GIF. Once a sign of Web 1.0, these graphics are now such a form of expression that there’s a startup just to search them. In this post, I’ll show you how to use an API to find GIFs and the SendGrid Inbound Parse Webhook to request specific search terms. The end result, of course, are animated GIFs inside your inbox.   The demo application uses Giphy to search for animated GIFs. Before I show the technology behind the application, try it out using either the email or

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An Update On Yahoo’s DMARC Policy

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A recent change in Yahoo’s DMARC validation policy may be preventing your messages from being delivered. Recently, Yahoo made a significant change in their Domain-based Message Authentication, Reporting, and Conformance (DMARC) policy. DMARC is a system for implementing Domain Keys Identified Mail (DKIM) and Sender Policy Framework (SPF) validation and authentication. With a DMARC policy in place, if an email address does not match the domain server/service it originated from, it is bounced or blocked. This is a great security measure for preventing emails from companies spoofing mail domains from reaching the inbox. Yahoo has introduced a DMARC record that

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