10 Email Marketing Interview Questions and Answers for Growth Marketers

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If you're preparing for growth marketer interviews, see also our comprehensive interview questions and answers for the following growth marketer specializations:

1. What is your experience in creating email marketing campaigns and what was the most successful one and why?

I have over five years of experience in creating email marketing campaigns for various clients. One of the most successful campaigns I created was for a clothing brand that aimed to improve customer retention and increase sales.

  1. First, I analyzed the customer data including demographics, purchase history, and behavior to create personalized content.
  2. Then, I designed a visually appealing template that matched the brand's aesthetic and included clear CTA buttons.
  3. The campaign included a series of targeted emails with a 10% discount code for their next purchase, personalized product recommendations, and social media integration for user-generated content.
  4. After launching the campaign, the client saw a 25% increase in sales and a 15% increase in returning customers, resulting in a total ROI of 350% for the campaign.

Overall, this campaign was successful because it combined personalized content, aesthetically pleasing design, and clear CTAs that converted customers into sales.

2. How do you segment your email list and what criteria do you use?

Segmentation is crucial in email marketing because it allows us to target specific groups of subscribers with customized messaging. Here are the steps I usually take to segment our email list:

  1. First, I separate our list into current customers and prospects. Customers have already purchased from us, so we can focus on upselling and retention tactics. Prospects, on the other hand, need to be nurtured through the sales funnel.
  2. Next, I segment each group by engagement level. For example, I might create segments for subscribers who opened our last email, clicked on a CTA, or haven't engaged in a while.
  3. I also segment by demographics and past behaviors. For example, we might have a segment for subscribers who have previously purchased a certain product, or who live in a specific location.
  4. Finally, I use email automation to set up trigger campaigns based on these segments. For example, if someone hasn't opened an email in a while, we might send a re-engagement campaign with a special offer.

By using segmentation and targeted campaigns, we have seen a significant increase in our email open and click-through rates. In fact, our open rates have increased by 25% and our click-through rates have increased by 15% since implementing this strategy.

3. What is your experience with A/B testing email campaigns?

As a Growth Marketer, A/B testing email campaigns has been a crucial part of my strategy. At my previous company, I led the effort to A/B test our monthly newsletter. We tested subject lines, email length, and different CTAs.

  1. Subject lines: We tested whether shorter or longer subject lines performed better. After analyzing the data, we found that shorter subject lines had a higher open rate by 15%.
  2. Email length: We tested emails with short paragraphs vs emails with bullet points. The data showed that emails with bullet points had a higher click-through rate by 10%.
  3. CTAs: We tested the color and placement of the CTA button. After testing different color options and placements, we found that a green CTA button above the fold had a 20% higher click-through rate compared to other options.

Overall, the A/B testing we conducted on our newsletter resulted in a 25% increase in open rates and a 18% increase in click-through rates. This experience has taught me the importance of data-driven decision making and the effectiveness of A/B testing in email marketing campaigns.

4. How do you optimize your email campaigns for deliverability?

To optimize email campaign deliverability, I follow a few best practices:

  1. Use a reputable email service provider: I only work with established email service providers (ESPs) with strong deliverability records, such as Mailchimp, Constant Contact or Campaign Monitor.
  2. Use permission-based subscription lists: I only send emails to subscribers who have granted permission to receive my messages. This helps to ensure that my emails don’t get marked as spam or junk.
  3. Ensure the content is relevant: People are more likely to engage with an email if it’s relevant to their interests. I always make sure my content is relevant to my subscribers based on their preferences and behaviors.
  4. Optimize subject lines: I’ve found that personalized, creative subject lines tend to result in higher open rates. I also avoid using spam trigger words such as ‘Free’, ‘Urgent’ or ‘Act now’ as these could end up in the spam folder.
  5. Regularly clean out inactive subscribers: I remove inactive subscribers who haven’t opened or clicked on an email in several months. This helps keep my subscriber list up-to-date and engaged.

Through using these tactics, I have been able to achieve an average email deliverability rate of 95% while maintaining a low spam complaint rate of less than 0.1%.

5. How do you measure the success of an email campaign?

  1. Open Rates: Open rates are one of the crucial metrics that reflect the success of an email campaign. The higher the open rates, the more successful the campaign. The industry benchmark for open rates is around 20-25%, but our campaigns have shown open rates above 30% consistently.
  2. Click-Through Rates: Click-through rates (CTR) measure how many recipients clicked on the links in the email. Higher CTR means more leads or conversions. We aim for a CTR of at least 3%, which has resulted in an increase in lead generation by 15% in our recent email campaign.
  3. Conversion Rates: Conversion rates are the percentage of recipients who took the desired action in the email, such as filling out a form or making a purchase. We measure conversion rates against the total number of people who received the email, with an average rate of 2%. Our recent 'summer sale' campaign led to a 5% conversion rate, which exceeded our expectations and resulted in a 25% increase in sales compared to the previous quarter.
  4. Bounce Rates: Bounce rates measure the delivery rate of emails and help in identifying issues such as invalid email addresses. Our bounce rate is usually under 1%, which indicates a strong email list with valid addresses.
  5. Unsubscribe Rates: Unsubscribe rates reflect the number of recipients who no longer want to receive the email campaigns. We aim to keep our unsubscribe rate below 0.5%, which is an industry-standard. Our recent campaign had an unsubscribe rate of 0.2%, indicating that the content resonated well with the subscribers.
  6. Revenue Generated: Ultimately, the success of an email campaign can also be measured by the revenue generated. In our last quarter, our email campaigns generated over $50,000 in revenue. By consistently measuring and improving our email campaigns, we aim to increase this number by 10% in the next quarter.

6. What is the most important metric you look at when measuring the success of an email campaign and why?

The most important metric I look at when measuring the success of an email campaign is the click-through rate (CTR).

CTR is a crucial metric because it tells us how many people are actually engaging with the email by clicking on a link. This means that they are interested in the content and are more likely to convert into customers or take the desired action.

For example, in a recent email campaign I managed for an e-commerce company, the CTR was 15%. This resulted in a 5% increase in website traffic and a 3% increase in sales compared to the previous month. This demonstrates the effectiveness of the campaign and the impact it had on the overall business goals.

However, it is also important to consider other metrics such as open rate, conversion rate, and revenue generated to paint a complete picture of the success of the campaign. But, in my experience, CTR is the most important metric to focus on as it directly correlates with engagement and potential revenue.

7. What is your experience with email automation and drip campaigns?

I have extensive experience with email automation and drip campaigns. In my previous role, I was responsible for creating and implementing a drip campaign for a SaaS company that resulted in a 25% increase in email engagement and a 15% increase in conversions.

  1. Firstly, I identified the different stages of the customer journey and mapped out the content that would be most relevant to each stage.
  2. Then, I created a series of automated emails that would be triggered based on where the customer was in their journey.
  3. I made sure that the emails were personalized and tailored to the customer's interests and previous interactions with the company.
  4. I also included clear calls to action in each email, which helped to drive conversions.
  5. Finally, I tracked the results and made adjustments based on the data. This helped us to continually improve the campaign and achieve better results.

Overall, my experience with email automation and drip campaigns has taught me the importance of data-driven decision making and constant improvement. I am confident that I can bring these skills to your organization and help drive growth through effective email marketing.

8. Can you give an example of a highly-engaging subject line you have used in an email campaign?

One of the most successful subject lines I have used in an email campaign was for a Black Friday sale for a fashion brand.

The subject line was "Black Friday FUN Starts NOW 🎉 50% OFF EVERYTHING!" The use of emojis and the word "fun" gave the subject line a playful and exciting tone, while also clearly stating the offer of 50% off everything.

This subject line resulted in a 45% open rate and a 20% click-through rate, which is well above industry standards. Additionally, it generated over $50,000 in sales within the first 24 hours of the campaign.

  1. I always aim to make subject lines attention-grabbing and specific to the offer.
  2. Personalization is also important, such as including the recipient's name or using "you" language to make it feel more personal.
  3. Using intriguing or urgent language can also increase email open rates.

Overall, it's important to constantly test and iterate different subject lines to find what resonates best with the audience and drives the most engagement.

9. How do you incorporate personalization in your email campaigns?

Personalization is a crucial aspect of email marketing as it allows us to connect with our subscribers on a more personal level. Here are the ways I incorporate personalization in my email campaigns:

  1. Segmentation: I segment my email list based on subscriber behavior such as open rates, click-through rates, and purchases. This enables me to send targeted emails to specific segments of my list, which increases engagement and conversions.
  2. Dynamically inserting subscriber information: I use merge tags to include the subscriber's name, location, and other details in my emails. This makes my emails feel more personalized and relevant, which can increase open rates and click-through rates.
  3. Behavioral triggers: I use behavioral triggers to automatically send targeted emails based on certain actions, such as abandoned cart emails or post-purchase follow-up emails. These emails are personalized based on the subscriber's actions, making them more relevant and effective.

By incorporating personalization in my email campaigns, I have seen significant improvements in engagement and conversions. For example, when I started segmenting my list based on subscriber behavior, I saw a 25% increase in click-through rates and a 20% increase in conversions. Additionally, when I started dynamically inserting subscriber information, I saw a 15% increase in open rates and a 10% increase in click-through rates.

10. How do you stay current with industry trends in email marketing?

  1. To stay current with industry trends in email marketing, I make sure to follow popular email marketing publications and blogs such as Hubspot, Litmus, and MarketingProfs. Additionally, I subscribe to email marketing newsletters from leading service providers such as Mailchimp and Constant Contact.
  2. I also attend industry conferences and events such as the annual Email Conference and MarketingProfs B2B Marketing Forum. These events provide a great opportunity to learn about the latest innovations and trends in the industry and network with other marketing professionals.
  3. Networking with other marketing professionals is another way I stay current. I am part of several marketing groups on LinkedIn where we share information and discuss industry challenges and opportunities.
  4. To ensure I stay up-to-date on the latest email marketing technology trends, I continually experiment with new tools and techniques such as A/B testing subject lines and CTAs or implementing advanced personalization and segmentation features available in our email service provider.
  5. Apart from this, I also conduct regular data analysis on our email campaigns to measure the success of email campaigns as well as gather insights into customer behavior and preferences. This helps me identify industry trends that could prove valuable to the business.
  6. Finally, I attend regular webinars, workshops, and online courses on email marketing to gain knowledge about the latest industry trends and best practices. For instance, I recently completed a course offered by Hubspot called "Email Marketing Certification" and was able to leverage the knowledge and insights from the certification to optimize our email marketing strategy.


In conclusion, mastering email marketing is crucial for growth marketers, and being able to answer interview questions related to it is essential. We hope this article has been helpful in preparing for your next interview. Remember to write a great cover letter and prepare an impressive CV. And if you're looking for a new job, don't forget to search through our remote Growth Marketing job opportunities.

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