In July, I wrote the blog post, Email Marketing Research: 7 steps for successful email marketing testing and optimization. In it, I discussed how continuous experimentation is the quickest path to peak performance. It enables marketers to go beyond best practices to learn what works for their organization and, more importantly, their customers.
I’m preaching to the choir, right? Well, I also encouraged readers to take the annual email benchmark survey conducted by MarketingExperiments’ sister company, MarketingSherpa.
Thankfully, this blog’s readers, along with more than 2,700 other email marketers, participated in the study. In appreciation, I would like to share with you the current state of email marketing testing practices.
Email testing on the rise
The number of marketers who routinely test email campaigns rose 3% from 2010 to 42%. This is good news as the industry inches closer to making it a prevailing practice.
Unfortunately, nearly six of 10 email marketing budgets do not have any money earmarked for testing and optimization. The majority (63%) of tests are conducted by employees for whom the practice is a part-time and secondary job responsibility, but still a formal part of their job description.
The minority includes the 23% of the email researchers who report the task as their primary focus and full-time duty and the 19% of marketers who perform experiments on the side without it being listed in their job description.
Testing practices most routinely performed
This information may help benchmark your programs and processes against the industry. But for this year’s survey, we wanted to delve deeper into which formal processes and guidelines organizations routinely use to test and optimize email campaigns. Here is a look into what we found.
Chart: More time needed for brainstorming and defining the testing objective
How routinely does your organization implement the following testing practices?

The above chart displays common testing practices in chronological order from top to bottom. We asked marketers to share with us which tasks their organizations routinely execute. The survey uncovered organizations are spending the most time segmenting their lists, understanding the impact of the test on the entire funnel, and documenting their findings. Read more…