DeBounce
DeBounce checks email addresses for syntax, domain, mailbox, catch-all, and other issues.
What DeBounce is
DeBounce checks email addresses for syntax, domain, mailbox, catch-all, and other issues. Users can upload TXT or CSV lists for bulk validation, then download customized result segments. The service detects disposable addresses and filters spam traps and honeypots. Its API supports real-time and bulk checks and can be used from Shell, Node.js, Ruby, PHP, and Python environments. Concurrent validation is limited to five requests by default; higher throughput may be available on enterprise plans. List Monitoring rechecks connected lists about once daily, typically 15–35 times per month, and generally uses credits equal to around twice the monitored list size each month. Integrations include HubSpot, Google Sheets, Mailchimp, ActiveCampaign, Mailjet, ConvertKit, MailerLite, Klaviyo, Brevo, Mailgun, WordPress, and Zapier. DeBounce says real-time API addresses are not stored and bulk lists and results are deleted after seven days. It offers a free plan and a Pay-As-You-Go option listed as free, with 5K–5M credit options, one credit per email, and credits that never expire.
Good
- Bulk uploads support TXT and CSV.
- API supports real-time and bulk validation.
- Credits never expire.
- Real-time API addresses are not stored.
- Integrates with email and productivity services.
Watch out
- Concurrent validation defaults to five requests.
- Monitoring typically uses twice the list size in monthly credits.
- Bulk lists and results are deleted after seven days.
Who it suits
DeBounce suits teams that need to validate individual addresses through an API or clean uploaded email lists. List Monitoring may suit users who want connected lists checked repeatedly.
Verdict
DeBounce covers list uploads, API checks, and recurring list monitoring, with a broad set of listed integrations. Its default concurrent-request limit and monitoring credit use are worth considering when planning volume.
Plans and prices
From DeBounce's own pricing page, checked 1 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Pay-As-You-Go | Free | 5K–5M credit options · 1 credit per email validation · credits never expire · all features included |
The facts
Each one read from DeBounce's own pages, with the date it was checked.
What it does
- API
- The API supports real-time and bulk validation and can be used from Shell, Node.js, Ruby, PHP and Python environments.checked 1 Oct 2026
- API limit
- Concurrent validation is limited to five requests by default, with higher throughput potentially available for enterprise plans.checked 1 Oct 2026
- Bulk validation
- Users can upload TXT or CSV email lists, process them, and download customizable result segments.checked 1 Oct 2026
- Deliverability guarantee
- DeBounce states that it backs verification results with a 97.5% or better deliverability-rate guarantee.checked 1 Oct 2026
- Disposable detection
- The service detects temporary or throwaway email providers.checked 1 Oct 2026
- GDPR
- DeBounce states that it is GDPR compliant and offers EU or North America validation-server regions on request.checked 1 Oct 2026
- Integrations
- Listed integrations include HubSpot, Google Sheets, Mailchimp, ActiveCampaign, Mailjet, ConvertKit, MailerLite, Klaviyo, Brevo, Mailgun, WordPress and Zapier.checked 1 Oct 2026
- Monitoring
- List Monitoring validates connected lists approximately once per day and typically 15–35 times per month.checked 1 Oct 2026
- Privacy
- DeBounce states that real-time API email addresses are not stored and that bulk lists and result files are automatically deleted after seven days.checked 1 Oct 2026
- Purpose
- DeBounce verifies email addresses through syntax, domain, mailbox, catch-all and other checks.checked 1 Oct 2026
- Security
- DeBounce states that retained personal data is stored in Germany, websites use SSL, raw-data servers are private-network-only, and result files are encrypted.checked 1 Oct 2026
- Spam traps
- DeBounce filters spam-trap and honeypot emails using an updated database.checked 1 Oct 2026
- Support
- The site advertises 24/7 support with experts.checked 1 Oct 2026
Money
- Monitoring cost
- List Monitoring typically consumes approximately twice the monitored list size in credits per month.checked 1 Oct 2026
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