SendBridge
AI-assisted bulk email verification that flags invalid, risky, and spam-trap addresses to protect sender reputation and deliverability.
What it does
SendBridge is an email-verification service that checks mailing lists for invalid, undeliverable, and risky addresses (spam traps, role accounts, catch-all servers, disposable emails) before a campaign is sent. It offers a web dashboard for bulk list uploads, a real-time verification API, and a free email deliverability/blacklist testing tool.
How to use: To use SendBridge, create an account, upload your email list, and download the cleaned list in Excel, CSV, or TXT format. You can also use the real-time email verification API for instant validation.
Core features
Bulk email list upload and cleaning via dashboard
Real-time verification API with SDKs for Go, Java, PHP, Python, .NET
Deliverability categorization (deliverable/undeliverable/risky/unknown)
Free deliverability score tool with SPF/DKIM/DMARC and blacklist checks
Pay-as-you-go credits that never expire
Downloadable cleaned lists in XLSX/CSV/TXT
Best for
→Email marketers cleaning lists before a campaign
→Cold-email senders protecting domain/sender reputation
→Developers integrating real-time verification at signup
→Teams diagnosing why emails land in spam via the free mail tester
Pricing
Free
5,000 credits
$9
25,000 credits
$29
100,000 credits
$79
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