Email Domain Lookup

Browse our comprehensive directory of popular email domains with detailed MX records, SPF, DKIM, DMARC authentication data, and mail server information. Research any domain before sending.

2,731 Domains Indexed
SPF, DKIM, DMARC Checks
MX Record Analysis
All (2,731) Freemail (200) Disposable (589) Corporate (1,134) Government (113) Education (431) Isp (264)
Domain ▲ Type Organization Mail Server Status
norfolksouthern.com corporate Norfolk Southern Proofpoint Active View
northcarolina.gov government State of North Carolina None Active View
northropgrumman.com corporate Northrop Grumman None Active View
northwestel.ca isp Northwestel Inc. Barracuda Active View
northwestern.edu education Northwestern University northwestern.edu Active View
notion.so corporate Notion Labs None Active View
notredame.edu education University of Notre Dame None Inactive View
nottingham.ac.uk education University of Nottingham Microsoft 365 Active View
novartis.com corporate Novartis AG Proofpoint Active View
novoNordisk.com corporate Novo Nordisk Mimecast Active View
nps.gov government National Park Service Microsoft 365 Active View
nrdc.org corporate Natural Resources Defense Council Proofpoint Active View
nsa.gov government National Security Agency mail.mil Active View
ntelos.net isp nTelos carrierzone.com Active View
ntl.com isp Virgin Media UK fireeyecloud.com Active View
ntlworld.com freemail Virgin Media UK virginmedia.com Active View
ntt.com isp NTT Communications Microsoft 365 Active View
ntu.edu.sg education Nanyang Technological University trendmicro.com Active View
nubank.com corporate Nu Holdings - Nubank Google Workspace Active View
nucor.com corporate Nucor Corporation Microsoft 365 Active View
numericable.fr isp Numericable sfr.fr Active View
nus.edu.sg education National University of Singapore trendmicro.com Active View
nutanix.com corporate Nutanix Inc. Proofpoint Active View
nuveen.com corporate Nuveen LLC Microsoft 365 Active View
nvent.com corporate nVent Electric plc Microsoft 365 Active View
nvidia.com corporate NVIDIA Corporation Microsoft 365 Active View
nwfsc.edu education Northwest Florida State College Microsoft 365 Active View
nwldx.com disposable — above.com Active View
nwmissouri.edu education Northwest Missouri State University Microsoft 365 Active View
nwosu.edu education Northwestern Oklahoma State University Microsoft 365 Active View
nwtel.ca isp Northwestel Microsoft 365 Active View
nxp.com corporate NXP Semiconductors Microsoft 365 Active View
ny.gov government State of New York Microsoft 365 Active View
nyse.com corporate New York Stock Exchange Proofpoint Active View
nytimes.com corporate The New York Times Google Workspace Active View
nyu.edu education New York University Proofpoint Active View
nyulangone.org corporate NYU Langone Health Proofpoint Active View
o2.co.uk isp O2 / Virgin Media None Active View
o2.pl freemail Grupa Pracuj tlen.pl Active View
o2online.de isp O2 Germany o2online.de Active View
oakton.edu education Oakton College Google Workspace Active View
objectmail.com disposable — trashmail.com Active View
obobbo.com disposable — None Active View
oceanspray.com corporate Ocean Spray Cranberries Microsoft 365 Active View
ochsner.org corporate Ochsner Health Microsoft 365 Active View
ocn.ne.jp isp OCN (NTT Communications) bizmw.com Active View
odn.ne.jp isp ODN (Japan Telecom) trendmicro.com Active View
odu.edu education Old Dominion University Microsoft 365 Active View
oge.com corporate OGE Energy Microsoft 365 Active View
ogilvy.com corporate Ogilvy Proofpoint Active View

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