15 days until BattleSnake: Are you ready?

Shake off your post -Valentine’s chocolate sugar rush and get your coding fingers ready:
BattleSnake 2017 is fast approaching!

For the fourth annual occurrence, we are inviting all developers and students to come and to join us for the programing competition of the year – pitting artificial intelligence (AI) snakes against one another to duke it out for eternal glory and over $5,000 in prizes.

BattleSnake is open to students and developers of all skill levels. We’ve already had over 450 people sign up to participate but still have room for more.


Don’t Let Big Emails Cost You Big Sales

Despite what they tell you in Texas: bigger is not always better – at least when it comes to email. Sidebar: during my three year tenure as an Austinite, I was very disappointed to learn that not all toast in Texas is Texas Toast. I know, I know – I was just as devastated as you.


Bigger is not always better when it comes to emails, in fact – huge emails could cost you big sales.

What am I supposed to do next?

Few marketers are able to master the awesome digest style emails showcasing deals or product recommendations. Sending a super long email with a hundred suggested items will overwhelm your recipients and they may just close the email and not convert at all.



5 Common Mistakes That Destroy Email Deliverability

This post is brought to you by our friend Jessica Martinez. Jessica is a music advocate, social media enthusiast, and Marketing Director of Kickbox.io. 

In this article we’ll be discussing common mistakes email marketers make that keep their messages from reaching the inbox. If you send email, take note, as you may be committing an email deliverability faux pas without even realizing it.

Email deliverability is the percent of emails that land in the inbox. It doesn’t matter how dazzling your email campaigns are if you have low deliverability. Only a small portion of your recipients will ever see your messages. Inbox placement is influenced by many factors, including your sender reputation, so it’s important you adhere to best practices to ensure your messages get delivered.

While it’s common to make errors from time to time, these offenses can land you in big trouble if they occur frequently. This is a big deal because email deliverability issues are not easily fixed.

The following five mistakes will keep you from seeing the results you want. Continue…


tl;dr – For security reasons, we’ve completely disabled SSLv3 access to both the Sendwithus API and Web app. Affected customers will need to take action to ensure they’re not attempting SSLv3 connections with our API.

Google recently uncovered a flaw in SSL 3.0, nicknamed “POODLE“, that exposes a major security vulnerability to all HTTP connections using SSL 3.0. This may include older servers and web browsers.

In response to this announcement, our hosting provider has disabled all SSL 3.0 connectivity to both our API and Web app, effective Midnight, Oct 17 2014. Most major hosting and service providers are doing the same.

This means any attempted SSL 3.0 connection to the Sendwithus API or Web app will result in connection failure. In most cases, customers will remain unaffected. However in some rare cases Sendwithus customers may need to update their OpenSSL on their production servers in order to regain API connectivity.

More information on updating OpenSSL can be found here: https://alas.aws.amazon.com/ALAS-2014-426.html

We’re working directly with all known affected customers.

If you’re experiencing API problems as a result of this recent security change, do not hesitate to reach out and we will assist as best we can.

Post Mortem: Sept 5th, 2014

Last Friday afternoon (September 5th, 2014), Sendwithus rolled out a major infrastructure upgrade aimed at increasing API throughput and email delivery times.

This infrastructure upgrade introduced a bug into our email sending pipeline. For a small subset of Sendwithus customers, drip campaign and segmentation emails were delivered multiple times over the course of a two hour periods early Saturday morning.

We’d like to discuss exactly how this incident happened, as well as the steps we’ve taken to correct and prevent future occurrences.

A full timeline of events is available at the bottom of this post.

Update: At this time all affected customers have been contacted by a Sendwithus representative. If a Sendwithus representative has not been in contact with you, your account and outgoing emails were not affected.


A/B Test with Confidence.js

Confidence.js is a simple JavaScript library that helps you make sense of your A/B test results. It uses the conversion rates of A/B test variants to determine if one of them is likely to perform better. Confidence also lets you know if there is enough data to make the final decision.

Here at sendwithus, we know how important it is to have enough data to confidently choose a winning variation. If you stop your A/B test before enough data has been collected, the variant you select might not deliver the results you’re expecting. We have worked hard to understand the statistics and math behind A/B testing so you don’t have to.

In our research we found that most A/B testing resources can really put a person to sleep. Continue…

Take Advantage of Post-Purchase Purchases

We are starting a blog series on improving transactional emails, taking examples from our inboxes and showing how to be smarter about them. To start preparing for this, I went through some old receipts of mine to see if I could contribute, and was struck by how often companies do not take advantage of the high open rates of their email receipts in order to sell more product.


Dead-End Email Showdown

As part of our blog series with our partners SendGrid, I did a post comparing the best and worst transactional email I’ve encountered lately.

It was really interesting to look at how dead-end email affects your user experience and engagement through email.

So go on and check it out here: blog.sendgrid.com/dead-end-email-showdown/

First Impressions: A Welcome Change

Here at sendwithus, we are committed to sharing information relevant to marketing teams dedicated to improving transactional emails for their companies.  We believe that first impressions matter.  We want your email campaigns to have a positive user experience from the moment they sign up.  Recently, Return Path reported the results of its five-year study on email subscriber experience.


Check out our sweet new office!

Hey there everyone, it’s Aaron here coming to you live from our new office space, Spacebar Victoria!  “Spacebar Victoria is the city’s only dedicated coworking space and it was designed from the outset to appeal to startups like sendwithus and independent tech workers”, says Shea Phillips, one of the people involved in launching the facility.   We just moved in here in August, and now that we’re comfy and settled, we wanted to share with you guys just how awesome it has been for us as a team so far.


As a small tech startup, the transition into Spacebar has been nothing short of amazing.  A tasteful design and modern layout has permitted us to both thrive individually as well as collectively.  We’re surrounded by fellow startups and a handful of freelancers to form an awesome community atmosphere with great potential for both networking and friendship alike. “When we conceived Spacebar, we wanted to create a great space where people would love working, but also a space that would encourage collaboration and cross-pollination among the users of the space”, confirms Shea.


We have these awesome mini-meeting rooms called phone booths, lots of cool artwork everywhere, and tons of whiteboard space for brainstorming.  With easy 24/7 access to our new space, we can handle the many goings on of sendwithus in our office environment.  We also have awesome access to a plethora of meeting rooms, comfortable couches, and of course plenty of coffee to top it all off. Shea says, “we’ve had really positive feedback about Spacebar’s setup and amenities and we’re constantly looking for ways to make it even better for our users.”


With a prime downtown location that we’re really proud to call home, Spacebar Victoria is definitely worth checking out! Follow Spacebar at @SpacebarVic on Twitter or connect via the Spacebar website at http://www.spacebarvictoria.com. Or, if you’re nearby, stop in and say hello!