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Guide

Guide

In-depth guides for each smtp-probe feature.

DNS Record Generator
Generate and verify SPF/DKIM/DMARC records in-browser
Domain Health Check
SPF, DKIM, DMARC, MX, PTR diagnostics
SMTP Verification
Verify mailbox existence via RCPT TO
IP Pool Management
Multiple IPs with auto-failover
Blacklist Scan
Check against 29 RBL blacklists
Disposable Email Detection
Detect temporary email providers
Free Email Detection
Detect free email providers
Multi-Node Deployment
GeoIP routing across regions
HTTP API
RESTful JSON API usage guide
Latency Probe
Measure SMTP connection latency
Role-Based Email Detection
Identify team, department, and system mailboxes
Domain Typo Suggestion
Auto-correct misspelled domains