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Insights from the Mailgun team

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  • Best Practices
Diving Head-First Into The Inbox: What’s Impacting My Deliverability?

It’s no secret that many first-time senders struggle with delivery across different mailbox providers. To find out what could be impacting deliverability for new senders, we set off on a journey to uncover as much information as we could about what makes MTAs tick.

Nick Schafer
5 min read
  • For devs
Avoiding The Blind Spots Of Missing Data With Machine Learning

You have a project, and you want to apply machine learning to it. You start simple: add one feature, collect data, create a model. You add another feature that’s really useful, but it’s only represented in half of your data points. You want to be smart and use all the data you have (including the one with missing values), but how do you do that?

Sergey Obukhov
5 min read
  • For devs
Devgun: Creating Development Environments With Kubernetes

When we first approached the problem of creating local development environments, we reached for common tools like vagrant. But as with most vagrant-built environments, build times are long. This means vagrant images have long lives and tend to drift overtime.

Derrick Wippler
5 min read
  • Best Practices
Domain Reputation or IP Reputation: Which One Does Gmail Care About More?

We often compare email reputation to a credit score. The better your sender score, the more likely your email will get delivered.

Chris Farmer
5 min read
  • What's new
Mailgun Security Incident And Important Customer Information

On January 3, 2018, Mailgun became aware of an incident in which a customer’s API key was compromised and immediately began diagnostics to help determine the cause and the scope of impact.

Josh Odom
2 min read
  • Best Practices
FML, My Mass Email Had A Typo. What Do I Do?

So, you made a mistake. You spent a long time making sure your email was perfect. You sent it out to your list, feeling all anxious and victorious at the same time.

Nicole Jacobson
6 min read
  • Best Practices
How To Build An Email List The Right Way

I’ve seen a lot of lists – good lists, bad lists, and everything in between – so I can usually tell when a company’s email list is going to cause deliverability problems. When someone says, “yeah, I’ve got about ten million people on my list. I bought it off the internet a few years ago from a guy named Joe, and…” that raises some red flags.

Nick Schafer
6 min read
  • Security
Lock It Down! Welcome, 2 Factor Authentication

Hour 0: Well, I never thought this would happen, but my password was leaked. My account has been compromised, and my services have been interrupted. This is bad.

Marco Salazar
4 min read
  • Security
FML, I Didn’t Send That! What To Do If Spam Gets Sent From Your Account

There are only a couple things worse than mall shopping on Christmas Eve. Your holiday party getting crashed by really bad guys Your account getting compromised by a malicious spammer For number 1, there’s Bruce Willis.

Ashley Rodriguez
3 min read
  • For devs
How To Set Up Message Queues For Asynchronous Sending

Message queuing is an interesting tool that can help us create scalable websites or web services. A message queue allows applications to communicate asynchronously by sending messages to each other.

Mailgun Team
4 min read
  • Best Practices
FML, Every Email I Send Goes To The Gmail Promotions Tab

The Promotions tab. Some people love it, some people hate it, some people love to hate it. For many of us, when we find our messages filed under Promotions instead of the primary inbox, we say something along the lines of:

Chris Farmer
5 min read
  • Best Practices
FML, I’m On An Email Blacklist. What Do I Do?

The holidays already come with mounting anxiety. Will I find a Nintendo Switch for the kids? Your mom’s going to stay here for how long?! Will there be eggnog? So when you find either your domain name or IP address on an email blacklist, it’s easy to overreact.

Travis Walton
5 min read

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