RUSSELL INTELLIGENCE
First-party verification intelligence.
Anonymous statistics learned only from verifications performed by this installation. Evidence quality never replaces conclusive mailbox evidence.
Verifications6301
SMTP success21.2%
Unknown29.7%
Catch-all33.6%
Disposable0.0%
Role addresses0.1%
Average verification2652.0 ms
Average SMTP2242.1 ms
Top mail providers
| Provider | Domains | Checks | Timeouts |
| Microsoft 365 | 1029 | 2192 | 2 |
| Google Workspace | 754 | 1764 | 0 |
| Custom SMTP | 592 | 1670 | 61 |
| Unknown | 85 | 327 | 0 |
| Proofpoint | 75 | 174 | 0 |
| Mimecast | 25 | 80 | 0 |
| Zoho | 19 | 41 | 0 |
| Barracuda | 20 | 36 | 0 |
| Cisco | 5 | 11 | 0 |
| Fastmail | 4 | 6 | 0 |
Most verified domains
| Domain | Provider | Checks | Confidence |
| gmail.com | Google Workspace | 124 | 99.5% |
| fanatics.com | Microsoft 365 | 104 | 10.6% |
| sd49.bc.ca | Microsoft 365 | 28 | 46.0% |
| hotmail.com | Microsoft 365 | 26 | 99.6% |
| yahoo.com | Custom SMTP | 22 | 77.0% |
| unitek-industrie-elektronik.de | Custom SMTP | 21 | 45.4% |
| formedica.com | Microsoft 365 | 21 | 46.0% |
| enpublishingrpg.com | Custom SMTP | 21 | 63.7% |
| bretz-hufer.de | Custom SMTP | 21 | 64.0% |
| mecotec.net | Microsoft 365 | 16 | 49.4% |
Historical growth
| Date | New anonymous histories |
|---|
| Oct. 8, 2026 | 1768 |
| Oct. 9, 2026 | 163 |
| Oct. 10, 2026 | 5 |
| Oct. 11, 2026 | 103 |
| Oct. 12, 2026 | 600 |
| Oct. 13, 2026 | 237 |
| Oct. 14, 2026 | 19 |
| Oct. 15, 2026 | 1869 |
| Oct. 16, 2026 | 24 |
| Oct. 17, 2026 | 64 |
| Oct. 18, 2026 | 253 |
| Oct. 19, 2026 | 29 |
| Oct. 20, 2026 | 3 |
| Oct. 22, 2026 | 8 |
| Oct. 23, 2026 | 66 |
| Oct. 26, 2026 | 101 |
| Oct. 29, 2026 | 1 |
| Oct. 30, 2026 | 1 |
| Nov. 3, 2026 | 132 |
| Nov. 7, 2026 | 38 |
| Nov. 8, 2026 | 19 |
| Nov. 9, 2026 | 106 |
| Nov. 11, 2026 | 4 |