mail.casadorock.com: 256 Temp Mail Domains Listed Since 2014

Updated 13 November 2026 · Volt Ghost team

The server at a glance

Method: a full MX scan of the 9,894 names in our copy of the open-source disposable email domains list, run over Cloudflare's DNS-over-HTTPS resolver on 13 November 2026, followed by TXT, _dmarc, NS and A lookups for each of the 256 members. RIPE and Team Cymru supplied the network details, Verisign's RDAP service the 2002 registration, and the project's Git history (including the file's pre-2018 name) the listing dates. Our 10 November scan found the same 256.

One template, 256 times

Every member domain is set up the same way: one MX record pointing at mail.casadorock.com, the SPF record v=spf1 mx -all, ClouDNS name servers, no DMARC and no website. Domains bought and configured by hand rarely match this closely. The SPF record is also unusual for temp mail. It lets the domain's own mail server send, where many pools publish a record that authorises nobody (compare mail.wabblywabble.com). Our SPF on disposable domains page puts both styles in context.

Like tinyhost.shop, the host domain casadorock.com isn't on the list, so an address there would pass a name check. It also differs from single-domain services such as vomoto.com, which runs a mail host under its own name.

Listed years before most temp mail pools

Our 2018 year page counts these domains as 2018 entries, because that is when the list file got its current name. Following the history back through the rename gives their real first-listed dates:

Nothing has joined the group since a single domain in May 2023. The later changes name different sites, including linshiyouxiang.net, emailfake.com, tempmailo.com and tempmailer.net. That suggests several temp mail front ends have handed out addresses on these domains over the years, or that the domains changed hands. The DNS can't tell those stories apart. It does show that 51 domains first reported as generator.email domains now deliver here, not to generator.email's own server.

The group's age makes it stand out. Of the 2,828 domains in our copy that were already listed at the 2018 rename, 713 no longer resolve at all. Among those still receiving mail, mail.casadorock.com is the largest single server with 243, well ahead of the 89 that use one of Mailinator's mail servers.

Why old listings still matter

Lists rarely drop a domain, so a long-listed name can be dead weight or a working inbox. These 256 still accept mail. If your sign-up rules skip old list entries to save lookups, this group is the reason not to. If you're on the other side and just need a burner email for a newsletter, a fresh inbox that lasts as long as you need is simpler than one of these shared domains.

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Got a single address or domain to check? The box below tells you whether it is listed, who hosts its mail and whether its MX is mail.casadorock.com.

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