Re:Engage
Email Marketing:
5 Key Steps for Optimizing & Growing your Newsletter Email program

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Newsletters are often one of the touchpoints with the broadest and most consistent reach across an organization or product’s subscriber base. This, combined with the common trend that newsletters are often lower-engagement than other lifecycle-based messaging, makes newsletters one of the highest-value areas for optimization.
This blog will focus on 5 steps to developing or enhancing a newsletter program with opportunities that can benefit both new and established programs.
The first key to developing a successful newsletter is knowing your audience. Understanding key demographics and activities for audience members as well as current engagement with newsletters and other parts of your touchpoint program will be helpful in understanding your subscribers’ expectations. It is also helpful to understand how homogeneous or differentiated your user base is–are they all in the same industry and role? Or are there varying levels of interest and engagement (for example, casual/recreational users and those that have more of a business or professional usage of the product).
In addition to gathering demographic information and quantitative engagement data for an existing (or adjacent) program, it can also be useful to ask other questions about how subscribers were acquired and their historical behaviors, including:
- What were subscribers promised at sign up? Was there an incentive tied to subscription or is subscription driven by content value?
- What is the experience for new subscribers? Did subscribing require a single or double opt in?
- How engaged are recipients in current newsletter content and other adjacent program content? How do we measure success and decide which content is included in our newsletter?
Gather Input Directly from Users
Build your future vision
Once you have compiled internal and external feedback from your audience, it is time to decide what the ideal perceptions and opinions of your content are under the new or enhanced newsletter program.
Develop Your Theme & Identity
Since newsletter communications represent a recurring but infrequent touchpoint with your audience, it is important to have theming and visual cues that represent your brand, audience expectations, and the content the audience can expect from the newsletter. Establishing and maintaining consistent editorial and creative guidelines help build familiarity, reputation, and engagement with your long-term audience members.
Length & format of content: providing the first few lines vs. summary. Do you want the reader to click through for more info or get all the info they need from the email?
CTA buttons vs Text links
CTA copy
Color, alignment, and appearance of CTAs
Developing an identity and consistent creative and editorial guidelines for a newsletter helps users know what to expect when they open an email. Establishing this identity early on also helps maintain familiarity while we optimize and iterate to improve performance later on.
Optimize, then Personalize
Work from biggest to smallest.
Isolate variables and run multiple tests.
Iterate into best practices by testing 1-2 variations at once. Don’t change everything at once or run too many variations, or you risk statistically insignificant or contradictory results. Check out ContinuumGlobal’s blog post on subject line testing for guidance on achieving statistically significant test results based on audience size.
Start simple and build into complexity.
Subject line content, personalization, and emojis
Preview/preheader text copy
Preview/preheader text copy
Newsletter length
Use of images/GIFs
Number of pieces of content
Frequency (1x/wk vs 2x/month)
CTA buttons vs text links
Alignment of CTAs & location relative to content
CTA copy, size & color
Copy format (title, description length)
Newsletter length
CTA buttons vs text links
Subject line content, personalization, and emojis
Preview/preheader text copy
Use of images/GIFs
Number of pieces of content
Frequency (1x/wk vs 2x/month)
Alignment of CTAs & location relative to content
CTA copy, size & color
Copy format (title, description length)
Testing Best Practices
Just like all other email programs, optimizing a newsletter program will be most successful when using best practices to ensure that results are valid and add value as quickly as possible.
Understand sample sizes. Your audience size (and expected response rate for the measured KPI) should determine how many variations to include in each test. An organization with only 100-200k newsletter recipients will most likely only be able to test 2 versions at a time and still may struggle to get statistically significant results, but an audience of 1-2 million will be able to test a higher number of variants. It is important to be disciplined about this because over-extending the audience size will lead to non-statistically significant tests, so it is better to test fewer variations and get solid results than waste time testing without being able to draw conclusions.
Repeat tests to ensure results. While we try to construct tests to isolate the one variable we want to examine (example: short vs long subject line) it is best to repeat the same type of test with several different pieces of content to ensure those results generalize to most situations. Some organizations use a “rule of three” to confirm results under different conditions (eg. testing emojis in the subject line with 3 different subject lines).
Create a library of learnings. Accumulated learnings are a huge asset for your team, and to realize this value it is important that these are easily accessible and cataloged for new team members and also for sharing with other groups that might benefit from the same learnings, like website, social, or paid search teams.
Grow Subscribers
- Adding a newsletter signup to other onboarding, transactional, or promotional emails
- Promoting newsletter signups via social channels, community forums or message boards
- Soliciting newsletter signups from colleagues, clients, and networks via LinkedIn
- Adding a newsletter opt in (or notification of default opt in) to product registration flows
- Using industry events, conferences, or free content (eg. blogs/webinars) to drive sign-ups
- Adding an exit-intent pop-up to website
- Run an online contest that requires newsletter signup for entry
- Offer gated content as incentive for signup
- Contextual or targeted advertising
Benchmark & Track Performance
Key Metrics to Monitor
- Send volume
- Open rate
- Clickthrough rate (including ability to drill down to click rate or # clicks by link)
- Bounce rate
- Opt out rate
- Website sessions and/or conversions sourced from newsletter
- Other website or product KPIs (time on site, page visits, conversions, etc…) sourced from newsletters
What’s Next?
Stats for Success
81% of B2B marketers say their most used form of content marketing is email newsletters. (Content Marketing Institute, 2020) and 31% of B2B marketers say an email newsletter is the top channel used to nurture leads.
GetResponse engagement rates by # of newsletters per week shows open rates drop off when sending >5 emails per week.
The New York Times newsletter readers consume twice as much content as those who don’t get newsletters, and are twice as likely to become paid subscribers. Greentech Media’s newsletter visitors spend 80% more time on site than visitors from other channels. (Parse.ly, 2018)
Engagement with email newsletters has positive correlation with product retention from Lenfest Institute.

Need help developing or growing your newsletter program? Seeking to optimize your customer touchpoints by leveraging testing, insights, and data-driven personalization? Contact ContinuumGlobal to learn more.