Guide6 min read
Why we don't publish an accuracy percentage
Why no email verifier can measure an accuracy percentage honestly, what to ask a vendor instead, and what Kawaa publishes in place of a number.
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Guide articles
Guide7 min read
SPF, DKIM, and DMARC: The complete email authentication guide
Set up SPF, DKIM and DMARC to protect your domain from spoofing and improve deliverability, with step-by-step setup instructions and troubleshooting.
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Guide6 min read
Hard bounces vs soft bounces: Understanding email bounce types
Learn the difference between hard and soft bounces, what causes each type, and how to handle them to protect your sender reputation.
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Guide6 min read
Role-based addresses: Should you send to info@ and sales@?
Addresses like info@, sales@ and support@ look like valid targets but can hurt deliverability. Learn why they're risky and how to handle them.
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Guide5 min read
Email warmup: How to build sender reputation from scratch
New domain or IP? Learn the exact process to warm up your email infrastructure, avoid spam filters, and build a strong sender reputation that lasts.
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Guide5 min read
Email deliverability audit: The complete checklist for 2026
An actionable checklist to audit your email deliverability, covering authentication, list hygiene, sender reputation, infrastructure and monitoring.
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Guide4 min read
Catch-all emails: How to verify unverifiable addresses
Catch-all domains accept every address, so a mailbox check cannot tell a real one from a made-up one. Learn how detection works and how to weigh the risk.
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Guide7 min read
Email sender reputation: How to protect your domain
Your sender reputation determines whether emails reach the inbox or spam folder. Learn how to monitor, protect, and improve your email reputation score.
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Guide7 min read
Disposable email addresses: How to detect and prevent them
Disposable emails inflate your list, skew your metrics and rarely convert. Learn how to detect temporary email addresses and protect your list quality.
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Guide5 min read
The ultimate guide to email verification
Everything you need to know about email verification: how it works, why it matters, and how to choose the right solution for your business.
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