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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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MX Records &
Server Health
SPF, DKIM
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Deliverability
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WHOIS &
Domain History

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 (2,618) Freemail (200) Disposable (589) Corporate (1,134) Education (431) Isp (264)
Domain ▲ Type Organization Mail Server Status
sierraclub.org corporate Sierra Club Google Workspace Active View
sify.com freemail Sify Technologies Microsoft 365 Active View
signifyhealth.com corporate Signify Health Inc. Mimecast Active View
sika.com corporate Sika AG sika.com Active View
simonandschuster.com corporate Simon & Schuster Proofpoint Active View
sina.com freemail Sina Corp com.cn Active View
sinclair.edu education Sinclair Community College Microsoft 365 Active View
singaporeair.com corporate Singapore Airlines Microsoft 365 Active View
singtel.com isp Singtel mx.microsoft Active View
sinnlos-mail.de disposable — targetbyte.com Active View
siriusxm.com corporate Sirius XM Holdings Proofpoint Active View
sisense.com corporate Sisense Inc. Google Workspace Active View
siu.edu education Southern Illinois University Microsoft 365 Active View
sjtu.edu.cn education Shanghai Jiao Tong University edu.cn Active View
skadden.com corporate Skadden Arps Slate Meagher and Flom skadden.com Active View
skanska.com corporate Skanska AB Microsoft 365 Active View
skechers.com corporate Skechers U.S.A. Inc. Proofpoint Active View
skiff.com freemail Skiff None Active View
sktelecom.com isp SK Telecom sk.com Active View
sky.com isp Sky Group Yahoo Mail Active View
skyworks.com corporate Skyworks Solutions Microsoft 365 Active View
slack.com corporate Salesforce Inc. Google Workspace Active View
slaskpost.se disposable — cloudflare.net Active View
slingshot.co.nz isp Slingshot co.nz Active View
slopsbox.com disposable — None Active View
slushmail.com disposable — simplelogin.co Active View
smartsheet.com corporate Smartsheet Inc. Proofpoint Active View
smashmail.de disposable — discard.email Active View
smu.edu education Southern Methodist University Microsoft 365 Active View
smucker.com corporate J.M. Smucker Company mailgun.org Active View
snap-on.com corporate Snap-on Incorporated Proofpoint Active View
snap.com corporate Snap Inc. Google Workspace Active View
snap.net.nz isp Snap Internet net.nz Active View
sneakemail.com disposable — sneakemail.com Active View
snowflake.com corporate Snowflake Inc. Google Workspace Active View
snu.ac.kr education Seoul National University gov-dooray.com Active View
snyk.io corporate Snyk Ltd. Google Workspace Active View
so-net.ne.jp isp So-net (Sony Network) ne.jp Active View
so-net.net.tw isp So-net Taiwan net.tw Active View
societegenerale.com corporate Societe Generale socgen.com Active View
sofort-mail.de disposable — domainparking.de Active View
softbank.com corporate SoftBank Group Proofpoint Active View
sogetthis.com disposable — mailinator.com Active View
sohu.com freemail Sohu Inc. sohu.com Active View
solaredge.com corporate SolarEdge Technologies Microsoft 365 Active View
solcon.nl isp Solcon solcon.nl Active View
solvay.com corporate Solvay SA Microsoft 365 Active View
sonatype.com corporate Sonatype Inc. Google Workspace Active View
sonicautomotive.com corporate Sonic Automotive Mimecast Active View
sonoco.com corporate Sonoco Products Company Microsoft 365 Active View

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