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Find out if an email is real before you send. Select any domain below to verify a mailbox exists, check MX records and mail server health, review SPF, DKIM and DMARC authentication, and see the full deliverability profile. Or upload your entire list to the bulk verifier and clean it with 99.7% accuracy.

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Every Domain Report Includes

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Verification
MX Records &
Server Health
SPF, DKIM
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Deliverability
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WHOIS &
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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
opm.gov government Office of Personnel Management Microsoft 365 Active View
oppo.com corporate OPPO Electronics Microsoft 365 Active View
optimizely.com corporate Optimizely Inc. Mimecast Active View
optimum.net isp Altice USA openwave.ai Active View
optonline.net isp Altice USA / Optimum openwave.ai Active View
optus.com.au isp Optus Mimecast Active View
optusnet.com.au freemail Optus Australia atmailcloud.com Active View
oracle.com corporate Oracle Corporation Proofpoint Active View
orange.co.uk isp Orange UK None Active View
orange.fr freemail Orange SA orange.fr Active View
orcon.net.nz isp Orcon net.nz Active View
ordinaryamerican.net disposable — spamgourmet.com Active View
oregon.gov government State of Oregon Microsoft 365 Active View
oregonstate.edu education Oregon State University Microsoft 365 Active View
oreilly.com corporate O'Reilly Automotive Inc. Google Workspace Active View
orsted.com corporate Orsted Microsoft 365 Active View
osaka-u.ac.jp education Osaka University Microsoft 365 Active View
osu.edu education Ohio State University Proofpoint Active View
otenet.gr freemail OTE Greece otenet.gr Active View
otherinbox.com disposable — Mimecast Active View
otis.edu education Otis College of Art and Design Barracuda Active View
ou.edu education University of Oklahoma Proofpoint Active View
ourklips.com disposable — casadorock.com Active View
outlawspam.com disposable — None Active View
outlook.cl freemail Microsoft Corporation Microsoft 365 Active View
outlook.co.id freemail Microsoft Corporation Microsoft 365 Active View
outlook.co.th freemail Microsoft Corporation Microsoft 365 Active View
outlook.co.uk freemail Microsoft Corporation mailanyone.net Active View
outlook.com freemail Microsoft Corporation Microsoft 365 Active View
outlook.com.au freemail Microsoft Corporation Microsoft 365 Active View
outlook.com.br freemail Microsoft Corporation Microsoft 365 Active View
outlook.de freemail Microsoft Corporation Microsoft 365 Active View
outlook.es freemail Microsoft Corporation Microsoft 365 Active View
outlook.fr freemail Microsoft Corporation Microsoft 365 Active View
outlook.in freemail Microsoft Corporation Microsoft 365 Active View
outlook.it freemail Microsoft Corporation Microsoft 365 Active View
outlook.jp freemail Microsoft Corporation Microsoft 365 Active View
outlook.sa freemail Microsoft Corporation Microsoft 365 Active View
outsystems.com corporate OutSystems Google Workspace Active View
overheid.nl government Government of Netherlands ssonet.nl Active View
ovh.net isp OVH ovh.net Active View
owens.edu education Owens Community College Microsoft 365 Active View
owenscorning.com corporate Owens Corning Microsoft 365 Active View
owlpic.com disposable — powered.name Active View
ox.ac.uk education University of Oxford trendmicro.eu Active View
oxfam.org corporate Oxfam International Microsoft 365 Active View
oxy.edu education Occidental College Google Workspace Active View
ozemail.com.au freemail iiNet Australia atmailcloud.com Active View
pacbell.net isp AT&T Pacific Bell Yahoo Mail Active View
pace.edu education Pace University Microsoft 365 Active View

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