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Email Domains Starting with R

Search email domains by risk status

Search and browse email domains classified by RiskMail. Identify temporary/disposable domains and safe email providers.

Jump to All 0–9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
letter R
r-18.net
Business Domain
Safe
r-18.org
No MX
Safe
r-19.ru
Business Domain
Safe
r-34.xyz
Business Domain
Safe
r-4dicall.tumblr.com
No MX
Safe
r-6.cn
Business Domain
Safe
r-7-casino-r-7.ru
No MX
Safe
r-7kasino.top
No MX
Safe
r-99.com
No MX
Safe
r-a-d.io
Business Shared MX
Safe
r-a-p-e-files.startspot.nl
No MX
Safe
r-a-p-e-films.startspot.nl
No MX
Safe
r-a-p-e-sex.startspot.nl
No MX
Safe
r-a-p-e.startspot.nl
No MX
Safe
r-a-t-n-a-cantik.blogspot.com
No MX
Safe
r-ac.jp
Business Shared MX
Safe
r-adimg.com
No MX
Safe
r-agent.com
Business Domain
Safe
r-and-k.tumblr.com
No MX
Safe
r-art.com
Business Domain
Safe
r-av.cc
Business Domain
Safe
r-b.ru
Business Shared MX
Safe
r-berinc.world
No MX
Safe
r-bloggers.com
Business Domain
Safe
r-caligay.tumblr.com
No MX
Safe
r-cam-girls-overzicht.startspot.nl
No MX
Safe
r-camtoppers.startspot.nl
No MX
Safe
r-card-service.at
Business Shared MX
Safe
r-casino.art
No MX
Safe
r-casino.info
No MX
Safe
r-casino.org
No MX
Safe
r-casino.ru
Business Domain
Safe
r-casino.win
No MX
Safe
r-casino2.com
No MX
Safe
r-casino2.ru
No MX
Safe
r-cdn.com
No MX
Safe
r-charts.com
Business Domain
Safe
r-charts.net
No MX
Safe
r-cms.jp
Business Domain
Safe
r-coder.com
Business Domain
Safe
r-corona.jp
No MX
Safe
r-cvonline.biz
No MX
Safe
r-diplomas.com
No MX
Safe
r-dorothy.com
Business Domain
Safe
r-e-a.net
Business Domain
Safe
r-e-d.jp
Business Domain
Safe
r-e-f.org
Business Domain
Safe
r-e.kr
No MX
Safe
r-eh.com
Business Shared MX
Safe
r-eldorado24.com
No MX
Safe
r-enterprise.com
Business Domain
Safe
r-eu.tsyndicate.com
No MX
Safe
r-express.ru
Business Shared MX
Safe
r-f.de
Business Domain
Safe
r-g-d.ru
No MX
Safe
r-gasmotron.tumblr.com
No MX
Safe
r-gol.com
Business Shared MX
Safe
r-graph-gallery.com
Business Domain
Safe
r-grimes.tumblr.com
No MX
Safe
r-group.com.au
Business Shared MX
Safe
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Explore domain risk signals used by the RiskMail API

The RiskMail domain directory is a public reference for email domains we have classified. Every entry is one of two states: Temporary / Disposable (a known throwaway-mail provider) or Safe (a free public email provider, a regular business domain with valid mail infrastructure, or a domain we have not yet seen disposable signals for).

If you operate a signup or login flow, this list is a starting point — disposable providers come and go faster than any static list can track. The RiskMail API reflects the live database in real time and returns a clean verdict: disposable | safe for each request.

See something missing or misclassified? Tell us and we'll re-evaluate the domain.