Email Bounce Rate Calculator

Find out what percentage of your emails didn’t reach your subscribers. Use our free Bounce Rate Calculator to monitor your campaign deliverability, assess your list health, and protect your sender reputation.

Your Email Bounce Rate is:

0.00%
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How Email Bounce Rate is Calculated

Your bounce rate is the percentage of sent emails that could not be delivered to a recipient's inbox. It is a critical indicator of your email list's quality.

Formula: (Total Bounced Emails / Total Emails Sent) × 100

Example: If you sent 1,000 emails and 50 of them bounced:

(50 / 1,000) × 100 = 5% Bounce Rate

Why Your Bounce Rate is a Critical Email Metric

  • Indicates Email List Health: A high bounce rate is the most common sign of an old, unmaintained, or low-quality email list.
  • Impacts Sender Reputation: Internet Service Providers (like Gmail and Yahoo) use bounce rates to judge your credibility as a sender. High bounce rates can cause your emails to be flagged as spam.
  • Affects Deliverability: A poor sender reputation means even your valid emails are less likely to reach the inbox, hurting the performance of all future campaigns.
  • Highlights Data Entry Issues: It helps you identify problems in your signup process where invalid email addresses are being collected.

4 Tips to Reduce Your Email Bounce Rate

  1. Regularly Clean Your Email List: Periodically use an email verification service to remove invalid and inactive email addresses from your list.
  2. Use Double Opt-In: Require new subscribers to confirm their email address by clicking a link. This ensures every email on your list is valid and the user is engaged.
  3. Never Purchase Email Lists: Purchased lists are notorious for having high bounce rates, spam traps, and disengaged users that will damage your sender reputation.
  4. Monitor Your Signup Sources: If a particular form or source is generating a lot of bounces, it may be attracting bots or have a typo issue.

Frequently Asked Questions

What is a good email bounce rate?

A good email bounce rate is generally considered to be below 2%. A rate between 2% and 5% is acceptable but could be improved. If your bounce rate is consistently above 5%, it's a strong indicator of problems with your email list quality or sending practices and should be addressed immediately to protect your sender reputation.

Why do emails bounce?

Emails can bounce for several reasons. A 'hard bounce' occurs when the email address is invalid, fake, or no longer exists. A 'soft bounce' is usually temporary and can be caused by a full inbox, a server being down, or the email message being too large.

How does bounce rate affect email marketing success?

A high bounce rate directly harms your sender reputation with email service providers like Gmail and Outlook. If you have a poor reputation, your emails are more likely to be sent to the spam folder, drastically reducing your open rates, click-through rates, and overall campaign effectiveness.

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