Burner domains / jar4.cn network
fqreleased.com is a disposable email domain
Our harvester recorded fqreleased.com on Oct 30, 2026. We list it because its MX records point at a burner mail host and an open list of disposable email domains carries it. We didn't test delivery or count real signups.
What we have recorded
- Listed by
- the ivolo/disposable-email-domains open list
- First seen by our harvester
- Oct 30, 2026
- Last seen by our harvester
- Oct 30, 2026
- Registered
- Sep 5, 2022. Its registrar is Domain Best Limited. Expires Sep 5, 2027. From the registry's RDAP record.
- Mail servers (MX)
mail.jar4.cn
- Burner mail network
- Its mail server belongs to jar4.cn, which our harvester classifies as a burner mail host. 21 other domains we track use it.
When each source carried it
| Source | First seen | Last seen |
|---|---|---|
| ivolo/disposable-email-domainsopen list | Oct 15, 2021 | Nov 5, 2026 |
- Added to the ivolo/disposable-email-domains list on Oct 15, 2021.
Listed by mistake? Open an issue on GitHub with the domain and the real mailbox provider it belongs to.
Cite this page
fqreleased.com is a disposable email domain. The ivolo/disposable-email-domains open list added it on Oct 15, 2021. SignupBouncer recorded it on Oct 30, 2026. Source: https://signupbouncer.com/burner/fqreleased.com
What our checker answers
A signup with an address at fqreleased.com, checked on the email alone with today's data: block
disposable_domain: fqreleased.com is a known disposable email domainburner_mx: fqreleased.com receives mail at mail.jar4.cn, a known disposable mail host
SignupBouncer runs this check on new signups to your app, through a Supabase auth hook or the REST API. Get a free API key or read the docs.
Other domains on the jar4.cn network
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