Single email check
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ZeroBounce at GURU · 2026
Your email list is decaying right now.
28% of email addresses go bad every year — quietly, until bounces spike and your best campaigns start missing the inbox. Check one below and see for yourself.
28%
avg. yearly list decay
99.6%
verification accuracy
650K+
customers worldwide
4×
Inc. 5000 honoree
Why this matters
List decay doesn't announce itself
ZeroBounce analyzed billions of validations to see how fast email data degrades. It isn't a one-time problem — it's constant.
Email list decay trend
Share of addresses going bad, by year
Job changes, layoffs, and abandoned accounts are the main causes- Most CRMs won't block a bad address from entering your database
- Most teams don't catch it until bounce rates spike
Source: ZeroBounce Email List Decay Report, 2026
62%of emails submitted to ZeroBounce were valid
1M+spam traps detected in ZeroBounce's data
155M+known complainers identified
Try it free — no account needed
See your inbox risk before you hit send
Two ways to test drive ZeroBounce right now. Both previews below are for illustration — run the real, free tools any time.
Bulk list preview
See the kind of breakdown you'd get after evaluating a list — valid, catch-all, invalid, and risky addresses.
The 5-check routine
Run this before every send
Use it as a recurring pre-send and post-send checklist — the fastest way to catch problems before they hurt your reputation.
Verify your sending identity
Can mailbox providers verify who you are? Make sure SPF, DKIM, and DMARC are correctly configured.
Know your list quality
Are you sending to a healthy list? Remove invalid, risky, and repeatedly inactive addresses.
Match the promise
Will recipients expect and value this email? Send relevant content to the right segment, at the right frequency.
Monitor the response
What is audience behavior telling you? Watch clicks, complaints, unsubscribes, bounces, and inactivity.
Review the results
Did you test, monitor, and learn? Check the campaign before sending, and review performance afterward.
Start today
Six things you can fix this week
- 1Authenticate your domain — SPF, DKIM, DMARC
- 2Remove invalid email addresses immediately
- 3Validate new contacts before they hit your CRM
- 4Suppress known complainers and risky addresses
- 5Send major campaigns to engaged contacts first
- 6Monitor inbox placement, not just delivery rate
Exclusive for GURU attendees
Your conference offer
Limited to GURU 2026
25% Bonus Credits on PAYG and the 1st month of ZeroBounce ONE
Use the code at checkout for 25% bonus credits on pay-as-you-go and the first month of ZeroBounce ONE.
