Email Intelligence Engine
Email verification API, pattern prediction, SMTP verification, and B2B scoring for AI outbound automation
The Email Intelligence Engine owns the most critical phase of the AI lead generation pipeline: finding and verifying professional email addresses. It combines 5-layer discovery (website crawl, search engines, PDF mining, social profiles, pattern prediction), 8-pattern email generation, and a rigorous 8-check SMTP email verification API. Every email gets a B2B tier score (TIER_1 to SKIP) with per-domain circuit breaker protection for reliable AI outbound automation.
Pipeline Stages
Each stage executes automatically, escalating only when needed.
Domain Validation
DNS/MX/SPF/DKIM/DMARC validation confirms the domain can receive email before the email verification API begins discovery.
Email Discovery
5-layer pipeline for AI lead generation: website crawl -> multi-engine search -> PDF/document mining -> social profile extraction -> pattern-based prediction.
Pattern Prediction
8 common B2B email patterns tested: first@, first.last@, flast@, firstlast@, first_last@, last@, last.first@, f.last@. Pattern learning from discovered emails for the lead enrichment platform.
SMTP Verification
8-check email verification API: Syntax -> Disposable -> Role -> DNS/MX -> SMTP handshake -> Catch-all detection -> Auth records (SPF/DKIM/DMARC) -> Reacher fallback.
B2B Scoring
Tier classification for AI outbound automation: TIER_1_SEND (>=80), TIER_2_LIKELY_GOOD (50-79), TIER_3_REVIEW (30-49), SKIP (<30). Weighted scoring from all verification signals.
Output
Streaming dataset push with verification results, tier classification, and confidence metrics per email for the sales intelligence API.
Domain Validation
DNS/MX/SPF/DKIM/DMARC validation confirms the domain can receive email before the email verification API begins discovery.
Email Discovery
5-layer pipeline for AI lead generation: website crawl -> multi-engine search -> PDF/document mining -> social profile extraction -> pattern-based prediction.
Pattern Prediction
8 common B2B email patterns tested: first@, first.last@, flast@, firstlast@, first_last@, last@, last.first@, f.last@. Pattern learning from discovered emails for the lead enrichment platform.
SMTP Verification
8-check email verification API: Syntax -> Disposable -> Role -> DNS/MX -> SMTP handshake -> Catch-all detection -> Auth records (SPF/DKIM/DMARC) -> Reacher fallback.
B2B Scoring
Tier classification for AI outbound automation: TIER_1_SEND (>=80), TIER_2_LIKELY_GOOD (50-79), TIER_3_REVIEW (30-49), SKIP (<30). Weighted scoring from all verification signals.
Output
Streaming dataset push with verification results, tier classification, and confidence metrics per email for the sales intelligence API.
Domain Validation
DNS/MX/SPF/DKIM/DMARC validation confirms the domain can receive email before the email verification API begins discovery.
Email Discovery
5-layer pipeline for AI lead generation: website crawl -> multi-engine search -> PDF/document mining -> social profile extraction -> pattern-based prediction.
Pattern Prediction
8 common B2B email patterns tested: first@, first.last@, flast@, firstlast@, first_last@, last@, last.first@, f.last@. Pattern learning from discovered emails for the lead enrichment platform.
SMTP Verification
8-check email verification API: Syntax -> Disposable -> Role -> DNS/MX -> SMTP handshake -> Catch-all detection -> Auth records (SPF/DKIM/DMARC) -> Reacher fallback.
B2B Scoring
Tier classification for AI outbound automation: TIER_1_SEND (>=80), TIER_2_LIKELY_GOOD (50-79), TIER_3_REVIEW (30-49), SKIP (<30). Weighted scoring from all verification signals.
Output
Streaming dataset push with verification results, tier classification, and confidence metrics per email for the sales intelligence API.
Key Capabilities
5-Layer Email Discovery for AI Lead Generation
Website crawl extracts published emails. Search engine queries find indexed emails. PDF/document mining scans attachments. Social profiles reveal personal emails. Pattern prediction generates candidates for the lead enrichment platform.
8-Pattern Prediction Engine
Generates candidate emails using first@, first.last@, flast@, firstlast@, first_last@, last@, last.first@, f.last@ patterns. Learns dominant patterns from discovered emails per domain for B2B sales intelligence.
8-Check SMTP Email Verification API
Syntax validation, disposable domain check, role-based detection, DNS/MX resolution, direct SMTP handshake, catch-all detection, authentication record analysis, and Reacher API fallback for comprehensive email verification.
Circuit Breaker Protection
Per-domain circuit breaker auto-stops after 5 consecutive failures. 60-second recovery window prevents SMTP loops and rate limiting cascades. Max 5 emails per domain for safe AI outbound automation.
4 Execution Modes
Full (all 6 stages), Discover Only (stages 1-3), Verify Only (stage 4), Predict Only (stage 3). Choose the mode that fits your B2B sales intelligence workflow.
Domain Rate Limiting
Max 10 requests/hour per domain. Intelligent queuing ensures no single domain triggers abuse detection while maintaining throughput across the batch for the email verification API.
Accepted Inputs
- Companies with domains (from Discovery or Contact Engine)
- Email list for verify_only mode
- Contacts with names for predict_only mode
- CSV/Excel with domain or email column
- Public URL or Apify KV Store key
Configuration
- Workers: 1-50 concurrent (default 10)
- Mode: full / discover_only / verify_only / predict_only
- Website Crawl: enable/disable layer 1
- Search Discovery: enable/disable layer 2
- PDF Discovery: enable/disable document mining
- Pattern Prediction: enable/disable 8-pattern generation
- Verification: enable/disable SMTP checks
- Reacher URL/Secret: configure fallback verifier
See It In Action
Frequently Asked Questions
Everything you need to know about our platform.
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