Burner domains / jar4.cn network

skygazerhub.com is a disposable email domain

Our harvester first recorded skygazerhub.com on Oct 29, 2026 and last recorded it on Nov 5, 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 disposable-email-domains open list
First seen by our harvester
Oct 29, 2026
Last seen by our harvester
Nov 5, 2026
Registered
Oct 6, 2026, 23 days before our harvester first saw it. Its registrar is Nameselite, LLC. Expires Oct 6, 2027. From the registry's RDAP record.
Mail servers (MX)
  • mail.jar4.cn
Looked up on Nov 5, 2026.
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

SourceFirst seenLast seen
disposable-email-domainsopen listAug 23, 2023Nov 5, 2026
  • Added to the disposable-email-domains list on Aug 23, 2023.

Listed by mistake? Open an issue on GitHub with the domain and the real mailbox provider it belongs to.

Cite this page

skygazerhub.com is a disposable email domain. The disposable-email-domains/disposable-email-domains open list added it on Aug 23, 2023. SignupBouncer last recorded it on Nov 5, 2026. Source: https://signupbouncer.com/burner/skygazerhub.com

What our checker answers

A signup with an address at skygazerhub.com, checked on the email alone with today's data: block

  • disposable_domain: skygazerhub.com is a known disposable email domain
  • burner_mx: skygazerhub.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

Check any email address

Paste an email address, and an IP if you have one. No account needed. The disposable email checker page explains each check.

We don't store the email or IP you type, or any history of your checks. But we keep the email's domain in our DNS cache for up to an hour, and a hash of your own IP address for up to 24 hours for rate limits. We also count how many checks end in allow, challenge or block each day. Details.