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
sumo.com corporate Sumo Logic Inc. Google Workspace Active View
summit-materials.com corporate Summit Materials Inc. Microsoft 365 Active View
sumitomo.com corporate Sumitomo Corporation fortimailcloud.com Active View
sullivancromwell.com corporate Sullivan and Cromwell None Inactive View
suddenlink.net isp Altice USA openwave.ai Active View
subway.com corporate Subway Restaurants Microsoft 365 Active View
subr.edu education Southern University and A&M College Microsoft 365 Active View
stuffmail.de disposable — stuffmail.de Active View
stryker.com corporate Stryker Corporation Microsoft 365 Active View
stripe.com corporate Stripe Inc. Google Workspace Active View
strabag.com corporate STRABAG SE Proofpoint Active View
stop-my-spam.tk disposable — None Inactive View
stop-my-spam.ml disposable — None Inactive View
stop-my-spam.ga disposable — None Inactive View
stop-my-spam.com disposable — None Active View
stop-my-spam.cf disposable — None Inactive View
stonybrook.edu education Stony Brook University Google Workspace Active View
stonehill.edu education Stonehill College Microsoft 365 Active View
stone.co corporate StoneCo Ltd Google Workspace Active View
stofa.dk isp Stofa norlys.dk Active View
stmicro.com corporate STMicroelectronics Microsoft 365 Active View
stmarys-ca.edu education Saint Mary's College of California Google Workspace Active View
stillman.edu education Stillman College Google Workspace Active View
stevens.edu education Stevens Institute of Technology Microsoft 365 Active View
steeldynamics.com corporate Steel Dynamics Inc. Mimecast Active View
stc.com.sa isp Saudi Telecom Company com.sa Active View
statefarm.com corporate State Farm Proofpoint Active View
state.gov government U.S. Department of State state.gov Active View
startmail.com freemail StartMail BV startmail.com Active View
starhub.com isp StarHub Proofpoint Active View
starbucks.com corporate Starbucks Corporation iphmx.com Active View
stanley.com corporate Stanley Black & Decker Proofpoint Active View
stanfordhealthcare.org corporate Stanford Health Care Microsoft 365 Active View
stanford.edu education Stanford University Proofpoint Active View
standardmotor.com corporate Standard Motor Products hostedmxserver.com Active View
standardbank.com corporate Standard Bank Group Microsoft 365 Active View
st-andrews.ac.uk education University of St Andrews ac.uk Active View
sscc.edu education Southern State Community College Microsoft 365 Active View
ssa.gov government Social Security Administration ssa.gov Active View
squarespace.com corporate Squarespace Inc. Google Workspace Active View
squareenix.com corporate Square Enix Holdings Proofpoint Active View
square.com corporate Block Inc. amazonaws.com Active View
spu.edu education Seattle Pacific University Microsoft 365 Active View
sprouts.com corporate Sprouts Farmers Market Proofpoint Active View
springer.com corporate Springer Nature Proofpoint Active View
spotify.com corporate Spotify AB Google Workspace Active View
spoofmail.de disposable — spoofmail.de Active View
splunk.com corporate Splunk Inc. cisco.com Active View
spirit.com corporate Spirit Airlines arsmtp.com Active View
spirax-sarco.com corporate Spirax-Sarco Engineering None Active View

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