The Blog
Hard-won lessons on email verification, inbox placement, and keeping your sender reputation spotless — from the team that's been verifying email since 2000.
Deliverability testing inside your ESP, CRM and sending platform
Improve deliverability and reduce bounce rates by verifying emails before sending from Close CRM. Clean your list, boost inbox placement, and protect sender rep
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Stay sharp
Occasional, practical notes on verification and inbox placement. No spam — we'd be embarrassed.
