Free Tools
Deliverability Utility Hub
Run quick diagnostics and validation checks before every campaign. Use these utilities with the desktop verifier for a complete email operations workflow.
Email Validator
Validate a single email address with syntax, MX, and risk checks.
Open ToolDisposable Checker
Detect temporary/disposable email providers quickly.
Open ToolMX Lookup
Check MX records and mail routing for any domain.
Open ToolSPF Checker
Validate SPF records and review lookup-limit risks.
Open ToolDMARC Checker
Verify DMARC policy and enforcement posture.
Open ToolDNS Lookup
Query A, AAAA, MX, TXT, NS and CNAME records.
Open ToolEmail Health Checker
Score domain email setup health with actionable recommendations.
Open ToolList Growth Calculator
Project subscriber growth using churn and monthly acquisition.
Open ToolEmail Extractor
Extract unique email addresses from pasted text blocks.
Open ToolEmail Name Extractor
Infer likely first and last names from email local-parts.
Open ToolInbox Placement Test
Estimate inbox readiness from DNS and authentication signals.
Open ToolEmail Finder
Generate likely professional email patterns from name and domain.
Open ToolESP Finder
Identify likely email provider from MX fingerprints.
Open ToolSPF Generator
Create SPF records from common sending components.
Open ToolSPF Flattening
Expand include chains for SPF review and optimization.
Open ToolDMARC Generator
Generate a valid DMARC TXT record with policy controls.
Open ToolEmail Blacklist Checker
Check sending IP presence on common DNSBL lists.
Open ToolAI Email Writer
Draft polished outreach messages with tone controls.
Open Tool