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13 Strategies To Increase Email Open Rates: Expert Guidance To Boost Open Rates in 7 Days

Email marketing continues to be a powerful tool for businesses to engage with their audience and drive valuable actions. However, crafting compelling emails is only half the battle; getting recipients to open and engage with your emails is equally essential. This is where understanding and optimizing your email open rates becomes crucial.

In this article, we will delve into expert strategies and insights to help you boost your open rates and maximize the impact of your email marketing campaigns. Whether you’re an experienced marketer or just starting out, these 13 proven strategies will provide you with actionable tactics to improve your email open rates within a span of just seven days.

So, let’s dive in and unlock the secrets to boosting your email open rates and achieving greater engagement with your audience.

What Is An Open Rate?

When it comes to email marketing, understanding the concept of open rates is crucial. An open rate refers to the percentage of emails in a campaign that recipients open. It is a key metric that provides insights into the effectiveness of your email marketing efforts and the engagement level of your audience.

Open rates are a vital metric in email marketing measuring the percentage of emails sent by recipients. By tracking and analyzing open rates, marketers can evaluate the performance of their campaigns, optimize the content, and enhance email engagement with their audience. Understanding open rates helps marketers gauge the effectiveness of their email marketing efforts and make data-driven decisions to improve their overall success.

How To Calculate Open Rate

An open rate is calculated by dividing the number of unique opens by the number of delivered emails, excluding bounced or undelivered emails. It is important to note that open rates are not measured for every single email sent, but rather as an average across a campaign or a specific time period.

An email is considered opened when the recipient either allows images to be displayed or clicks on a link within the email. Open rates are often calculated by email service providers by comparing the number of opened emails to the number of emails delivered.

Factors Affecting Open Email Rates

Open rates play a significant role in the success of email marketing campaigns. Understanding the factors that influence open rates is essential for marketers to optimize their email content and improve engagement with their audience. Several key factors can impact open email rates:

Subject Lines

Subject lines are important for capturing the attention of recipients. A compelling and intriguing subject line can entice recipients to open the email. Marketers should focus on crafting subject lines that are concise, relevant, and compelling, using techniques like personalization, wordplay, and curiosity to encourage recipients to click.

Email Content

The content of the email itself plays a crucial role in determining whether recipients will open it. You must provide valuable and relevant content to subscribers. Tailoring the content to meet the interests and needs of the target audience increases the likelihood of recipients opening and engaging with the email. Read more about optimizing your email content here.

Sender Reputation

It’s important for maintaining a trustworthy sender reputation to boost open rates. ISPs and spam filters assess the reputation of the email sender to determine if an email should be delivered to the recipient’s inbox or marked in the spam folder. Building and maintaining a positive email sender reputation involves sending relevant and engaging content, avoiding spam trigger words, and managing bounce rates effectively.

Subscriber Behavior

Understanding subscriber behavior is crucial for improving open rates. Segmenting the email list based on subscriber preferences, demographics, or behavior, can help you improve your open rates. By tailoring emails to specific segments and delivering content that aligns with their interests, marketers can increase the chances of recipients opening and engaging with the email.


The timing of email delivery can significantly impact open rates. Consider the optimal time and day to send your marketing messages to email subscribers. Analyzing recipient behavior and conducting A/B tests can help determine the best timing for maximum engagement. Factors such as industry, target audience, and geographic location can also influence the optimal timing for email delivery

What Is A Good Open Rate?

It is worth noting that average open rates can vary depending on the industry, target audience, and other factors. The average open rate across industries is around 20.81%, but this can differ significantly based on the nature of the emails and the specific audience.

13 Email Marketing Tips To Increase Email Open Rates

Here are 13 strategies you could you to boost open rates for your next email campaign.

1. Send Emails At The Right Time For Engagement

The best time of day to send emails depends on factors such as the availability of recipients and their work schedules. It is generally recommended to avoid sending emails while recipients are asleep or during their work hours. 

Finding a time when recipients are likely to be available, such as after work or during lunch breaks, can increase the chances of email engagement. However, the timing is not as critical as sending the right message that resonates with the recipients. Consistency in sending emails and providing valuable content can lead to higher open rates and keep recipients informed about your updates. While not every email will be opened, aiming for a few times a week minimum can help maintain a strong connection with your audience.

2. Incite Curiosity

One effective strategy to increase email open rates is to trigger curiosity through your subject lines and email content. Creating a sense of intrigue and anticipation can make recipients curious and eager to open your emails. This can be achieved by using a compelling subject line that tease the content inside or by posing intriguing questions that leave recipients wanting to find the answers. It is also important to ending your email with a question to spark curiosity and encourage interaction with your subscribers. By leveraging curiosity, you can create a sense of anticipation and make your recipients more likely to open your emails in order to satisfy their curiosity.

Use wordplay, engaging language, and symbols and avoid spam trigger words and phrases that decrease trustworthiness. Pay attention to character count, considering the different dimensions of desktop and mobile displays, to ensure that subject lines are effectively conveyed across various devices.

Overall, triggering curiosity through subject lines and engaging content is a proven method to increase email open rates.

3. Use A Personalized Subject Lines

Personalization is a powerful technique to boost email open rates, as it creates a sense of relevance and connection with the recipient. Personalizing a subject line can significantly improve open rates by catching the recipient’s attention and making them feel the email is tailored to their needs and interests. By addressing recipients by their name or incorporating other personalized elements, you can make your emails stand out in crowded inboxes and increase the chances of them being opened.

It is vital to understand the recipients’ needs and desires in order to craft personalized emails. By segmenting your email list based on demographics, behaviors, or preferences, you can tailor a subject line and content to specific groups of recipients, making them more likely to engage with and open your emails. Additionally, using engaging language and writing emails as if you’re referring to a friend can create a personalized tone and foster a stronger connection with your audience.

Use a personalized subject line on the email itself to grab the recipient’s attention and show that the content is relevant to them. By taking the time to understand your customers and their preferences, you can craft subject lines that resonate with their interests and motivations.

Personalization is a key factor in improving email open rates. By incorporating recipients’ names, segmenting your email list, and crafting a subject line that address their specific needs and interests, you can create a sense of relevance and connection that compels recipients to open your emails. Personalized subject lines can significantly increase the chances of engagement and ultimately lead to a higher email open rate.

4. Keep The Subject line Within The Character Count

Keeping the subject line within the character count limit is crucial for optimizing email open rates. Subject lines between 61-70 characters tend to have a higher read rate. It’s essential to consider the devices on which recipients will view their emails, as desktops show approximately 60 characters, while mobile devices display around 25-30 characters. By crafting a concise and to-the-point subject line, you can ensure that your message is fully visible and effectively communicates its purpose.

Subject lines with a length of 61-70 characters had a higher read rate of 17%. Keeping the subject line within this optimal range can capture recipients’ attention and make a strong impact within the limited space available.

Use engaging language and symbols to make a subject line more compelling. By using a shorter subject line, you can effectively convey the message and intrigue recipients without overwhelming them with excessive text.

5. Clean IP Reputation

To prevent your emails from being flagged as spam, it is essential to have a good IP address, a reputable email service, and a clean template code. Including a clear unsubscribe link in your email header, footer and optimizing it can also help build trust with subscribers and reduce the likelihood of being marked as spam.

Maintaining a high sender score is crucial to prevent your emails from being rejected by ISPs. Monitoring your sender reputation allows you to identify and address any issues that may impact your email deliverability.

6. Authenticate Your Emails

Adhering to authentication techniques, such as implementing a Sender Policy Framework (SPF) and registering a sub-domain can help establish your email’s credibility and improve deliverability.

The Sender Policy Framework is an authentication protocol that helps prevent email spoofing and verifies that the email was sent from an authorized server. By publishing SPF records in your domain’s DNS (Domain Name System), you can provide email service providers with clear instructions on which servers are authorized to send emails on your behalf. This helps establish your email’s authenticity and improves deliverability by reducing the chances of your emails being marked as spam.

7. Avoid Spam Triggering Words

Avoiding spam trigger words and phrases is essential to bypass spam filters with any email service provider. Certain words and phrases like “discount,” “subscribe,” or “pay” can trigger spam filters and decrease the trustworthiness of your emails. Using engaging language and focusing on providing value to subscribers can help your emails avoid the spam tab.

Read our guide on spam-triggering words.

8. Try Using Emojis

Using emojis in your email subject lines can be a fun and effective way to capture the attention of your subscribers. Emojis add visual appeal and can convey emotions or concepts concisely and engagingly.

Emojis can help your emails stand out in a crowded inbox. With their colorful and expressive nature, emojis can grab the reader’s attention and make your email more enticing to open. However, it is important to use emojis strategically and ensure they are relevant to the content and tone of your message.

Using engaging language are necessary and emojis can certainly contribute to that. Emojis can help convey emotions, create a sense of urgency, or add a playful touch to your subject lines. They can also make your emails appear more personalized and human, fostering a connection with your subscribers.

However, it is important to note that not all email clients and devices display emojis properly. It’s crucial to test your emails before sending them to ensure the emojis are displayed as intended and do not hinder the readability of the subject line.

9. Segment Inactive Subscribers

Segmenting your email list is a powerful strategy to increase the effectiveness of your email marketing campaigns. One important segment to consider is inactive subscribers—those who haven’t engaged with your emails for a while.

Keep your email list fresh by removing inactive subscribers. These are the subscribers who haven’t shown any engagement with your emails over a certain period. By segmenting this group, you can specifically target them with re-engagement campaigns, tailored content, or incentives to reignite their interest.

Segment your email list based on subscriber behavior. Subscribers can be segmented based on factors like the time since their last interaction, their purchase history, or their level of engagement. This allows you to send targeted emails that are more likely to re-engage these subscribers and encourage them to open and interact with your emails again.

To implement this strategy effectively, it is important to review and analyze your email engagement metrics regularly. Once segmented, develop a targeted re-engagement strategy that includes compelling content, personalized offers, and gentle reminders of the benefits they can gain from staying subscribed.

10. Optimize For Mobile Devices

emails displaying incorrectly on mobile may be deleted within seconds. With mobile users checking their emails three times more than desktop users, it is crucial to ensure that your emails are visually appealing and functional across different mobile devices.

Mobile email traffic is more valuable than desktop clicks. 52% of customers are less likely to engage with a company due to a bad mobile experience. This data underscores the importance of delivering a seamless mobile experience to your subscribers.

Emails should be designed responsively to appeal to mobile users and achieve higher conversion rates.

To optimize your emails for mobile, follow these best practices:

  • Use responsive design: Ensure that your email templates and layouts adjust automatically to fit various screen sizes, providing a seamless experience across devices.

  • Simplify your design: Opt for clean, uncluttered designs that are easy to navigate and read on mobile screens. Use a single-column layout, larger fonts, and ample white space to enhance readability.

  • Test your emails: Before sending out your campaigns, test them across different mobile devices and email clients to ensure they display correctly and function smoothly.

  • Keep your content concise: Mobile users have limited attention spans, so keep your email content concise and focused. Use short paragraphs, bullet points, and clear headings to make your message scannable.

11. Continuously Clean Your List

To maintain high email open rates, it is crucial to continuously clean and update your list. Over time, subscribers may become inactive, change their email addresses, or unsubscribe from your emails. By regularly cleaning your list, you can ensure that you’re only targeting engaged and interested recipients. Here are some key practices to follow:

Remove inactive subscribers

Identify subscribers who haven’t engaged with your emails for a specific period, such as six months or more. Sending emails to inactive subscribers not only hampers your open rates but also negatively impacts your sender reputation. By removing inactive subscribers, you can focus on a more engaged audience.

Monitor email bounces

Bounced emails occur when they are undeliverable, usually due to invalid or non-existent email addresses. High bounce rates can harm your sender reputation and deliverability. Regularly monitor bounce rates and remove bounced addresses from your list to maintain a clean and active subscriber base.

Provide an easy unsubscribe option

Make it effortless for subscribers who no longer wish to receive your emails to unsubscribe. Including a visible and user-friendly unsubscribe link in your emails shows respect for your subscribers’ preferences and helps maintain a healthy email list.

Prompt re-engagement campaigns

For subscribers who haven’t interacted with your emails for a while, consider sending re-engagement campaigns. These emails can serve as a reminder of the value you provide and give recipients the opportunity to confirm their interest or unsubscribe if they’re no longer engaged. By targeting inactive subscribers proactively, you can improve your open rates and engagement metrics.

Implement double opt-in

Double opt-in is a two-step verification process that confirms a subscriber’s interest in receiving emails from you. After subscribing, the subscriber receives an email requesting confirmation. This helps ensure that the email address provided is valid and that subscribers genuinely want to receive your emails. Implementing double opt-in can help prevent fake or mistyped email addresses from entering your list and improve the quality of your subscriber base.

12. Perform A/B Tests

Performing A/B tests is a valuable practice to optimize your email marketing strategy and improve open rates. By testing different elements of your emails, you can gather data-driven insights and make informed decisions about what resonates best with your subscribers. Here’s how to conduct effective A/B tests.

A/B testing, also known as split testing, allows you to compare two versions of an email to determine which one performs better in terms of open rates. This method helps you identify the most effective elements and strategies to engage your audience. Let’s explore how you can leverage A/B testing to improve your email open rates.

Test subject lines

The subject line is a critical factor in email open rates. Experiment with different approaches, such as using emojis, posing questions, personalization, or creating a sense of urgency. By testing multiple subject lines, you can determine which ones generate higher open rates and resonate best with your subscribers.

Experiment with sender names

The sender name is another influential element that can impact open rates. Test different sender names, such as using a person’s name, your company name, or a combination of both. Analyze the results to identify the sender name that generates the highest open rates and establishes trust with your audience.

Vary email content

Test different variations of your email content, including the copy, formatting, and visuals. Experiment with different lengths, writing styles, call-to-action placement, and the use of images or videos. By comparing the performance of different content variations, you can determine what resonates best with your subscribers and encourages them to open your emails.

Test send times and frequencies

Explore different send times and frequencies to find the optimal schedule for your audience. Test sending emails on different days of the week and at various times during the day. Analyze the open rates to identify patterns and determine when your subscribers are most likely to engage with your emails.

Measure engagement metrics

In addition to open rates, track other engagement metrics such as click-through rates and conversion rates. These metrics provide a comprehensive view of how your emails are performing beyond just the open rates. By analyzing the data from A/B tests, you can make data-driven decisions to optimize your email campaigns and improve overall engagement.

Remember, when conducting A/B tests, it’s essential to test one element at a time to accurately determine its impact on open rates. Keep your test sample sizes statistically significant and track the results consistently. By continually testing and optimizing your email campaigns, you can uncover valuable insights and make data-backed decisions to improve your open rates and overall email marketing performance.

13. Use Humor

Using humor in your email subject lines can be a powerful strategy to capture the attention of your subscribers and increase open rates. Humor has the ability to evoke positive emotions and create a memorable experience for your audience. Here are insights and examples on how to effectively incorporate humor into your email marketing.

Inject humor into subject lines

One way to make your email stand out in a crowded inbox is by using humorous subject lines. Humor can instantly grab attention and pique curiosity. Experiment with clever wordplay, puns, or funny statements that relate to your content or offer. However, it’s crucial to align the humor with your brand voice and audience preferences to ensure it resonates positively.

Remember that humor is subjective, and what may be amusing to one person may not be as funny to another. It’s important to understand your audience’s preferences and gather feedback to ensure your humor lands positively. By incorporating humor effectively into your email subject lines, you can create a memorable and enjoyable experience for your subscribers, leading to higher open rates and increased engagement.

25 Examples Of Email Marketing Subject lines To Boost Open Rates

  1. Don’t miss out on this incredible opportunity!”

  2. “Limited time offer: Act now before it’s gone!”

  3. “Last chance: Get the popular product before it’s too late!”

  4. “Urgent: Only 24 hours left to grab this deal!”

  5. “Today’s exclusive: Unbelievable price for XYZ!”

  6. “Time is running out! Don’t let XYZ slip away!”

  7. “Don’t regret missing out on this tomorrow…”

  8. “Can you really afford to pass up on this?”

  9. “Don’t miss another sale! Take advantage of this one!”

  10. “Overcome FOMO: Seize the opportunity with XYZ!”

  11. “Find the solution to your XYZ problem here!”

  12. “Seeking guidance on XYZ? We’ve got you covered!”

  13. “Say goodbye to XYZ troubles: Discover the cure!”

  14. “Put an end to your XYZ struggles today!”

  15. “XYZ problems? No more! Experience relief now!”

  16. “No more headaches: Solve your XYZ issue!”

  17. “Unlock the solution: Your XYZ problem, solved!”

  18. “Stop XYZ from ruining your life! Get help now.”

  19. “Don’t endure XYZ any longer: Find relief here!”

  20. “Bid farewell to XYZ: Say goodbye for good!”

  21. “Time is ticking: Save 20% on your order today!”

  22. “Act fast: Only 3 days left to save!”

  23. “Final call: Grab your early bird tickets before it’s too late!”

  24. “Hurry! Last chance for 50% off!”

  25. “Time is limited: Act now to benefit from XYZ!”