How to fix bounce rate issue

Where there’s good email deliverability, there’s a great response and conversion rate.

It’s crucial to improve email deliverability and protect the sender reputation of our user’s email addresses connected to That’s why we stop sending an email drip campaign if it reaches a 10% bounce rate. 

Please note that the bounce rate is not shown in your campaign statistics. You may only see the percentage of recipients whose emails were bounced or auto-replied to in Not reached status.


Here’s how to measure bounce rate. Multiply the number of sent emails by the percentage of bounced emails.

           Bounce rate = number of sent emails × percentage of bounced emails

The reasons for exceeding a 15% bounce rate might be various. To decrease it, we recommend taking the following steps: 

1. Send emails only to verified prospect lists. 

First, make sure your prospects list is clear. We don’t recommend sending emails to unverified and unverifiable (risky) emails, as they can be incorrect, outdated, or nonexistent. Such email addresses can undermine your domain reputation and negatively affect your future mailing. 

You can check your email addresses with Email Verifier or any other email verification service you prefer.

2. Send emails to an interested audience.

Your leads, conversions and ROI depend on a clean email list filled with active users that engage with you. Ensure your recipients are interested in the products and services you offer. 

Don’t ever buy email marketing lists where addresses are of low quality. Find your way of organizing your email list, using subscription forms or prospecting services.

3. Add an unsubscribe link. 

It is necessary to add an unsubscribe link to your email to exclude contacts that have lost interest in your content. Otherwise, they might send your emails to spam. 

4. Turn off link tracking.  

Although link tracking is useful for knowing who clicked the link in your emails, such links are being filtered by email service providers. Try not to use them unless necessary.

5. Spam test your email.

You can manually check your email using spam testing tools, for example, Mail Tester or GlockApps, to verify if your email will pass all spam filters.

6. Avoid using spam words in your message.

Spam words in either your subject line or email body can trigger spam filters, which means that your email is likely to go to the spam folder. Choose the words you use carefully and check out these 550+ spam trigger words to avoid In 2021.

7. Warm up your email address. 

If you send email campaigns from a new account, you need to warm it up first to build a good sender reputation. Start with a smaller number of emails per day and increase it step by step. Keep an eye on email statistics, ensure your messages are opened and replied to. Ask your friends and colleagues to open your emails, mark them “not spam” if they landed in the spam folder, and write a response.

Your email schedule should look like this:

Week 1: 10 to 25 emails per day
Week 2: 25 to 50 emails per day
Week 3: 50 to 75 emails per day
Week 4: 75 to 100 emails per day

Be patient. The process can take a little bit longer. 

Learn more tips on how to improve your email open rate in our video:

Please note that we don’t see the reason for a bounce on our side. Analyze the steps above to identify the problem. Once you’ve fixed the cause of the issue, you can contact our campaign manager about resuming the campaign at We will help you, and your email drip campaign will be resumed.

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