Disposable Email Domains 2026: 9,894 Names, Shared Servers

Updated 14 November 2026 · Volt Ghost team

In short. Our 16 October 2026 copy of the open disposable-email-domains list holds 9,894 names. 4,925 were first listed in 2026. On 10 November, 6,722 still had a working mail server. About half of the names that still resolve publish SPF; far fewer publish DMARC or a findable DKIM key. This report's tables and text are CC BY 4.0. We do not publish the names.

How large is the list?

The numbers below come from the copy of the list that powers our checker, dated 16 October 2026. That file is a snapshot of the community disposable-email-domains project (CC0 1.0), plus Volt Ghost's own two domains. It holds 9,894 names across 255 top-level domains. We treat it as a lookup list only: this page, the list tool and the checker will answer for one domain at a time. There is no download, CSV or JSON of the names on this site.

.xyz is almost entirely a 2026 story, which the ending page covers in more detail. The five former Freenom endings still account for 343 listed names, most of them no longer in DNS, as that page explains. The remaining 255 endings are a long tail; the ten rows above are the ones with a clear concentration, not a full census.

Growth by year

A first-listed year is the earliest date we can see in the upstream Git history, compiled on 4–7 November 2026. Two names in our copy have no first-listed date: Volt Ghost's own domains, which were added locally. Everything already in the list file when it was renamed on 8 October 2018 is counted as 2018 here, even though some of those names were first recorded earlier; the 2018 year page notes that caveat.

2018 is still the second-largest year because it holds the project's early seed, including long-lived groups such as the casadorock pool. After that the list grew slowly for several years, then jumped in 2025 and again in 2026. 4,925 names first listed in 2026 are almost half of today's copy. 326 further 2026 names had already been removed again before 16 October. The year page, and the month pages for June and October, cover those waves without repeating their tables here.

What DNS looked like in mid-November

We asked Cloudflare's DNS-over-HTTPS resolver for an MX record on every name in the copy. A working MX, on this page, means the lookup returned NOERROR and at least one target that is not a null MX (the RFC 7505 “this domain accepts no mail” signal). The 10 November 2026 scan is the latest:

Three days earlier, on 8 November, NXDOMAIN stood at 1,821 and working MX at 6,750. The list is not a set of live inboxes; almost one name in five had already disappeared from DNS by mid-November, and another tenth existed without a mail server. Those slices have their own pages. For a sign-up form, a stale blocklist and a live MX check will disagree, which is why the detection guide treats list freshness and mail-server checks as separate signals.

Shared mail-server families

A large share of listed names do not run their own mail host. They point MX at a small set of servers that many other listed names already use. The groups below are families we already describe on this site. Counts are listed names that had a working MX on that family on 10 November 2026. A family page may quote a slightly higher “listed” total from an earlier scan or from membership even when a name no longer has MX.

GPTMail alone is about one in seven working-MX names. Add the next six families and you are past 2,800. The “all other” row is not one operator: it includes smaller groups, Mailinator's 90 listed names from its own family page, and domains that run a mail host of their own. Cloudflare Email Routing and Google Workspace MX are general forwarding services, not disposable hosts; they still appear because listed names use them. The family pages explain each group's DNS and history.

Where those mail servers sit

On 10 November 2026 we resolved the A records of the MX hosts and mapped each address to an organisation via its ASN. 6,656 names with a mail host could be mapped this way. The ten largest organisations, already summarised on the Hetzner network page, were:

Those ten organisations account for 5,923 of the 6,656 mapped names, more than four in five. Hetzner, DigitalOcean, Contabo and OVHcloud each have a dedicated page. Some families straddle two networks (the Wabbly/Wally pair announces one Hetzner address and one DigitalOcean address per host), so a domain can appear in more than one network write-up even though it is counted once in the table above.

SPF, DKIM, DMARC and MTA-STS

Authentication records describe how a domain sends mail, not whether an inbox is disposable. We still measured them, because the pattern is consistent: many listed names publish SPF, fewer publish DMARC, and only a minority have a DKIM key we can find. The figures below are from the 9 November 2026 scan already reported on the authentication pages, so they line up with those pages rather than a later re-parse.

Of the SPF records, 2,664 ended in -all (a fail for any unlisted sender), 1,107 in ~all, 50 in ?all, 12 in +all (which lets any host on the internet pass), and 5 had no all term. 355 names published exactly v=spf1 -all, the usual way to say a domain sends no mail at all. DMARC policies were 789 quarantine, 582 reject and 353 none. A few batches set the same record on hundreds of names at once; the SPF, DKIM and DMARC pages name those batches. DKIM is a floor: we asked for the selectors default, dkim, s1, mail, google, k1, selector1 and selector2, then dropped 19 names whose answers were a wildcard TXT on every selector rather than a key. A domain signing under any other selector would not appear here.

How we counted, and what this is not

• List snapshot. 16 October 2026, 9,894 names, stored privately for lookups. Upstream project: disposable-email-domains, CC0 1.0. Our copy adds Volt Ghost's two domains. We do not ship that file in the public site, llms files or assets.
• First-listed years. Taken from upstream Git history compiled 4–7 November 2026. 2018 includes names already present at the 8 October 2018 file rename. Two local names have no upstream first-listed date.
• MX and DNS state. Cloudflare DNS-over-HTTPS, full-list scans on 5, 8 and 10 November 2026. The tables above use 10 November unless a linked slice page is dated earlier.
• Family grouping. By MX host, using the same suffixes as the existing family pages. “Working MX on 10 November” can be a little lower than a family’s “listed” count.
• Authentication. TXT, DMARC and MTA-STS on 9 November 2026, as published on the authentication pages. DKIM as described above.
• Networks. A records of MX hosts, mapped to ASN and organisation on 10 November 2026.

This is not a ranking of temp mail products, a guide to getting past a sign-up filter, or a live census of every domain anyone has ever used for a throwaway address. New names appear after our snapshot, and some privacy services that forward to a lasting inbox are never listed. A name that is not listed may still be disposable; a listed name is one the maintainers have accepted.

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