Data Verification
Data verification confirms that a value is real — the email actually receives mail, the phone actually rings, the company actually exists — beyond just looking correctly formatted.
What is data verification?
Data verification goes one step beyond validation: validation says "this string looks like a phone number," verification says "this number actually rings." For email, that means SMTP-level checks plus catch-all detection; for phone, line-type checks; for companies, registry lookups.
Why it matters
- Validated-but-unverified emails still bounce — the difference between a healthy and a tanked sender reputation
- Cold-call lists with unverified numbers waste rep time on disconnected lines
- Compliance often demands verified consent records, not just present ones
Verification techniques
- Email: syntax → domain MX → SMTP handshake → catch-all detection
- Phone: carrier lookup, line type (mobile vs. landline vs. VoIP), do-not-call registry
- Address: geocoding + postal-service validation
- Company: business registry, domain age, employee-count cross-check
How TexAu helps
Built-in verification on enrichment outputs — every email validated before it reaches the sequencer, with deliverability scoring that flags catch-all and risky domains.
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