Is ferngrove.orgdisposable?

Yes

ferngrove.org is a disposable email service: inboxes are temporary and often open to anyone. It's on the open disposable-email-domains blocklist. People use these services to skip email verification or grab free trials.

Clerks at long desks in the Dead Letter Office, its name painted on the back wall — The Dead Letter Office. Mail that could not be delivered was sorted here.

Mail servers (MX)

Checked Nov 5, 2026. First checked on MailVet: Nov 5, 2026.

A clerk at a desk covered in stacks of envelopes — Clara Nelson of the Dead Letter Office, 1916.

email.gravityengine.cc

Block it at signup

New temp-mail domains appear constantly, so any list goes stale.

A large office of clerks at desks under hanging lamps — The Dead Letter Office, 1904.

// Node.js / TypeScript
const blocked = new Set(["ferngrove.org" /* , ...10,000+ more */]);
const domain = email.split("@").pop()!.toLowerCase();
if (blocked.has(domain)) throw new Error("Please use a permanent email address.");