What you get for every domain
Select any domain below to see its full deliverability profile and verify individual email addresses at that domain for free.
- Live mailbox verification confirms whether a specific address exists and accepts mail, with no email ever sent.
- MX records and mail server health show you which servers handle mail for the domain, their priority, and whether they respond.
- SPF, DKIM and DMARC authentication tell you whether the domain protects against spoofing and how receivers will treat your mail.
- Deliverability scoring and reputation give you a clear verdict: safe to send, proceed with caution, or do not send.
- WHOIS registration and domain history reveal who operates the domain, when it was registered, and its nameservers.
Cleaning a full list?
Upload a CSV or TXT file with any number of addresses across any mix of domains. Every address runs through the same live SMTP checks you see on the individual domain pages, plus catch-all detection, role-account filtering, and disposable domain blocking.
From $0.0001 per emailPay as you go. No subscription. Credits never expire.
Previously failed? Free recheckAddresses on your blacklist are reprocessed at no cost.
Popular Domains
gmail.com Google LLC
yahoo.com Yahoo Inc.
outlook.com Microsoft Corporation
hotmail.com Microsoft Corporation
live.com Microsoft Corporation
icloud.com Apple Inc.
aol.com AOL Inc.
protonmail.com Proton AG
comcast.net Comcast Corporation
verizon.net Verizon Communications
att.net AT&T Inc.
msn.com Microsoft Corporation
All (2,731)
Freemail (200)
Disposable (589)
Corporate (1,134)
Government (113)
Education (431)
Isp (264)
| Domain ▲ | Type | Organization | Mail Server | Status | |
|---|---|---|---|---|---|
| umicore.com | corporate | Umicore SA | Microsoft 365 | Active | View |
| umkc.edu | education | University of Missouri-Kansas City | Microsoft 365 | Active | View |
| umn.edu | education | University of Minnesota | umn.edu | Active | View |
| umsl.edu | education | University of Missouri-St. Louis | Microsoft 365 | Active | View |
| una.edu | education | University of North Alabama | Proofpoint | Active | View |
| unam.mx | education | National Autonomous University of Mexico | Microsoft 365 | Active | View |
| unc.edu | education | University of North Carolina at Chapel Hill | Microsoft 365 | Active | View |
| unca.edu | education | University of North Carolina at Asheville | Google Workspace | Active | View |
| uncc.edu | education | University of North Carolina at Charlotte | iphmx.com | Active | View |
| uncg.edu | education | University of North Carolina at Greensboro | Microsoft 365 | Active | View |
| uncw.edu | education | University of North Carolina Wilmington | Microsoft 365 | Active | View |
| und.edu | education | University of North Dakota | Microsoft 365 | Active | View |
| ung.edu | education | University of North Georgia | Proofpoint | Active | View |
| unh.edu | education | University of New Hampshire | Microsoft 365 | Active | View |
| uni-bonn.de | education | University of Bonn | uni-bonn.de | Active | View |
| uni-heidelberg.de | education | Heidelberg University | uni-heidelberg.de | Active | View |
| unicamp.br | education | University of Campinas | Google Workspace | Active | View |
| unimelb.edu.au | education | University of Melbourne | Mimecast | Active | View |
| unionpacific.com | corporate | Union Pacific Railroad | None | Active | View |
| uniqlo.com | corporate | Fast Retailing - UNIQLO | Microsoft 365 | Active | View |
| united.com | corporate | United Airlines | Proofpoint | Active | View |
| unitedhealth.com | corporate | UnitedHealth Group | corpmailsvcs.com | Active | View |
| unitedway.org | corporate | United Way Worldwide | Barracuda | Active | View |
| unity.com | corporate | Unity Technologies | Google Workspace | Active | View |
| unitymedia.de | isp | Unitymedia | unitymedia.de | Active | View |
| universalmusic.com | corporate | Universal Music Group | Microsoft 365 | Active | View |
| unk.edu | education | University of Nebraska at Kearney | Proofpoint | Active | View |
| unl.edu | education | University of Nebraska-Lincoln | Proofpoint | Active | View |
| unlv.edu | education | University of Nevada, Las Vegas | Google Workspace | Active | View |
| unm.edu | education | University of New Mexico | Microsoft 365 | Active | View |
| uno.edu | education | University of Nebraska at Omaha | Microsoft 365 | Active | View |
| unsw.edu.au | education | UNSW Sydney | Proofpoint | Active | View |
| unt.edu | education | University of North Texas | Microsoft 365 | Active | View |
| unum.com | corporate | Unum Group | Proofpoint | Active | View |
| uol.com.br | freemail | UOL Group | com.br | Active | View |
| uottawa.ca | education | University of Ottawa | Microsoft 365 | Active | View |
| up.edu | education | University of Portland | Microsoft 365 | Active | View |
| upc.nl | isp | UPC Netherlands | ziggo.com | Active | View |
| upenn.edu | education | University of Pennsylvania | Proofpoint | Active | View |
| upmc.com | corporate | UPMC | Proofpoint | Active | View |
| ups.com | corporate | United Parcel Service | Proofpoint | Active | View |
| uq.edu.au | education | University of Queensland | iphmx.com | Active | View |
| uri.edu | education | University of Rhode Island | Proofpoint | Active | View |
| usa.com | freemail | USA.com Inc. | mail.com | Active | View |
| usa.gov | government | U.S. Government | None | Active | View |
| usaa.com | corporate | USAA | Proofpoint | Active | View |
| usaid.gov | government | U.S. Agency for International Development | Google Workspace | Active | View |
| usc.edu | education | University of Southern California | Proofpoint | Active | View |
| usd.edu | education | University of South Dakota | Microsoft 365 | Active | View |
| usda.gov | government | U.S. Department of Agriculture | Microsoft 365 | Active | View |
Verify Your Entire Email List
with 99.7% Accuracy
Upload a CSV, clean your list, and remove every invalid, disposable, and spam trap address. No contracts. No monthly fees. Just pay for what you need.
Bulk Email Verification
Real-Time API
No Credit Card Required
ISO 27001
Security Certified
SOC 2 Type II
Auditor Verified
GDPR
Fully Compliant
CCPA
Privacy Ready
HIPAA
Healthcare Ready
AES-256
Encryption