smtp.oneb.net handles mail for 152 domain(s) we track — a known disposable mail pool.
This host belongs to Oneb, which runs 1 mail server(s) in total. The provider page has the full domain list and infrastructure.
We classify this host as a disposable mail pool: enough of the domains behind it are throwaway services that an address on a new domain here is more likely than not to be disposable too.
See whether a specific domain is disposable, forwarding or safe — and which mail server it actually uses.
Enter a domain to look up its mail server and trust signals
Resolving MX records and identifying the mail host…
A mail server's reputation is one signal. The API scores every signup against the whole catalogue — disposable pools, low-trust domains, catch-alls and gateways — as it grows.
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