Free Email Bounce Rate Checker - Verify Your Email List
High bounce rates killing your email campaigns? Our email bounce rate checker helps you identify problematic addresses before you hit send. Upload your list and get instant insights into your email deliverability.
Email bounces happen when your messages can’t reach their destination. Too many bounces can damage your sender reputation, get you flagged as spam, or even get your account suspended by your email service provider.
How to Check Your Email Bounce Rate
Using our checker is simple:
1. Upload your email list (CSV or TXT format)
2. We’ll analyze each address for potential issues
3. Get a detailed report showing risky addresses
4. Export the cleaned list and improve your campaigns
The whole process takes less than a minute, and you’ll have actionable data to improve your deliverability.
What Is Email Bounce Rate?
Bounce rate is the percentage of emails that don’t reach their intended recipients. There are two types:
Hard bounces happen when an email address is invalid, doesn’t exist, or the domain is wrong. These are permanent failures that won’t resolve themselves.
Soft bounces are temporary issues – maybe the recipient’s inbox is full, their server is down, or the message is too large. These might work if you try again later.
A healthy bounce rate is under 2%. Anything above 5% is concerning and needs immediate attention.
Why Your Bounce Rate Matters
Your bounce rate directly impacts your sender reputation. Email providers like Gmail and Outlook watch how many of your emails bounce. If too many fail, they assume you’re a spammer and start blocking your messages.
Even worse, high bounce rates can get your account suspended. Most email marketing platforms have strict policies about bounce rates. Go over their threshold, and you might find yourself locked out.
Beyond the technical stuff, bounces waste money. You’re paying to send emails that never arrive. Cleaning your list means every email you send has a better chance of reaching a real person.
Common Causes of High Bounce Rates
Old email lists are the biggest culprit. People change jobs, abandon old accounts, or switch providers. An email address that worked last year might be dead now.
Typos during signup create invalid addresses from the start. Someone types “gmial.com” instead of “gmail.com” and that address bounces forever.
Purchased email lists are almost always full of bad addresses. The people on those lists never asked to hear from you, and many addresses are outdated or fake.
Fake signups happen when people want to access gated content but don’t want your emails. They’ll type nonsense like “abc@test.com” just to get past your form.
How Our Checker Helps
We analyze email addresses for common problems:
Syntax errors: We check if the email format is valid
Domain validation: We verify the domain actually exists
MX record lookup: We confirm the domain can receive emails
Known disposable domains: We flag temporary email services
Spam trap detection: We identify addresses that might be honeypots
Tips to Reduce Bounce Rates
Use double opt-in for new subscribers. This confirms people actually want to be on your list and their address works.
Clean your list regularly. Check addresses every few months, especially if you haven’t emailed certain contacts in a while.
Remove hard bounces immediately. There’s no point keeping addresses that will never work.
Monitor engagement. People who never open your emails might have abandoned that address.
Make it easy to update email addresses. Give subscribers a way to change their contact info if they switch providers.
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Analyzing MX Records & Roles...
Frequently Asked Questions
Is my email list private?
Yes, we don’t store or share your list. Everything is processed securely and deleted immediately after analysis.
How accurate is the checker?
We catch most common issues, but some addresses might look valid yet still bounce. The best test is actually sending an email.
Can I check addresses from any email provider?
Yes, we work with Gmail, Outlook, Yahoo, custom domains, and every major provider.
What file formats do you accept?
CSV and TXT files with one email per line. We also accept Excel files.
How many emails can I check?
You can check up to 5,000 addresses per upload for free.
Will this improve my deliverability?
Removing bad addresses definitely helps, but deliverability also depends on content quality, sending frequency, and subscriber engagement.
What To Do With Your Results
Once you get your report, take action quickly. Remove all hard bounces from your list – keeping them only hurts your reputation.
For soft bounces, try sending again in a few days. If they keep bouncing, treat them like hard bounces and remove them.
Consider re-engagement campaigns for addresses that haven’t opened emails in months. Send one last “are you still interested” message, then remove non-responders.
Moving forward, check new signups before adding them to your main list. Catching bad addresses early prevents future problems.
A clean email list means better deliverability, higher open rates, and more successful campaigns. Check your bounce rate now and start improving your results.