Updated · Volt Ghost team
Google's MX hosts on listed domains
| MX host | Domains |
|---|---|
aspmx.l.google.com | 51 |
alt1.aspmx.l.google.com | 47 |
alt2.aspmx.l.google.com | 45 |
smtp.google.com | 34 |
alt3.aspmx.l.google.com | 27 |
alt4.aspmx.l.google.com | 26 |
aspmx2.googlemail.com | 18 |
aspmx3.googlemail.com | 17 |
Re-checked with Cloudflare DNS-over-HTTPS on 6 November 2026 for every member of this group (0 errors; membership unchanged vs the 5 November full-list scan). All 87 answered with an MX record. The classic Workspace recipe is aspmx.l.google.com plus several altN backups; 34 listed domains instead publish only smtp.google.com, which Google also documents for Workspace.
| MX query, 6 Nov 2026 | Domains |
|---|---|
| MX record present | 87 (100%) |
Mostly old names, still pointing at Google
| First listed | Domains | Gone by 6 Nov 2026 |
|---|---|---|
| 2018 or earlier | 60 | 0 (0%) |
| 2020 | 2 | 0 (0%) |
| 2025 | 8 | 0 (0%) |
| 2026 | 17 | 0 (0%) |
| Date | Change | Added |
|---|---|---|
| 8 October 2018 | use neutral language for naming and describing assets in this repo (7448bb6) | 60 |
| 13 January 2026 | Add additional domains to the disposable email blocklist (cf6f166) | 3 |
| 16 November 2025 | Add tmailor.com domains (#786) (2114d62) | 3 |
| 18 January 2026 | Add Additional Verification Records for tmailor.com Domain (#852) (958151d) | 3 |
| 12 February 2020 | Update failing domains (3960b85) | 2 |
60 of the 87 were already in the list file when its Git history begins (8 October 2018). That is the opposite pattern from Cloudflare Email Routing, where most names are recent. A Google MX on an old listed domain is a common way a throwaway name keeps receiving mail without running its own server.
| Ending | Domains |
|---|---|
.com | 29 |
.org | 8 |
.net | 6 |
.ru | 3 |
.it | 3 |
.de | 3 |
Detection: list first, MX second
Site owners who treat "MX contains google.com" as a allow-signal will accept these 87 addresses. Site owners who treat any unfamiliar domain as disposable will also reject real Workspace users. The workable order is the one in how sites detect disposable email: match the domain (and its parents) against a maintained list, then look at MX only as supporting context. Whether using a listed domain is allowed on your site is a policy question; is disposable email legal? covers the legal side separately from blocklists.
For a second opinion on the host name itself, our email host lookup labels Google Workspace from the MX, and the disposable email checker flags the domain when it is on the list.
Other forwarding and parking MX groups we have broken down: Cloudflare Email Routing, Mailgun, Above.com parking.
These 87 names are not free @gmail.com addresses. They are separate domains that happen to publish Google's Workspace-style MX hosts (aspmx.l.google.com or smtp.google.com). Mail still lands wherever that Google account forwards it; the disposable signal is the domain being on the list, not Google's servers themselves. Our email host lookup labels a custom domain on those hosts as Google Workspace, and gmail.com itself as Gmail (personal).
Look up a domain
Look up one name to see if it uses Google MX as a forwarder, who hosts its email, or what its MX records say.
Questions
Does a Google MX mean the domain is a real Google Workspace account?
Usually it means Google accepts mail for the domain, which is what Workspace customers configure. It does not prove who controls the mailbox behind it, and it does not prove the domain is absent from disposable lists.
How many listed disposable domains use Google MX hosts?
87 on 6 November 2026: 53 on the classic aspmx / googlemail set and 34 on smtp.google.com (no overlap in our scan).
Should I block every Google MX domain at sign-up?
No. That would block ordinary Workspace customers. Check the domain against the disposable list; only then does a Google MX become interesting as camouflage.
Is this the same as Gmail's free @gmail.com addresses?
No. Free Gmail addresses use the gmail.com / googlemail.com domains themselves (see our Gmail MX records page). These 87 are separate domains whose MX happens to point at Google.
