Filed under: Account takeover

Is this 'your mailbox is full, verify to keep receiving mail' text a scam?

Last reviewed: 2026-08-01 · Checked with Hunch’s on-device engine, the same one inside the extension. How Hunch checks →

Part of our guide: How to secure and recover a hacked account →

Yes. A 'mailbox almost full, verify your account within 24 hours to keep receiving messages' text linking to mail-storage.example is a credential-phishing lure. Email providers manage storage inside your account settings, not through a look-alike link with a deadline. The 'verify your account' step is a fake login built to steal your email password, which often unlocks everything else you own.

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People who rely on email for everything, password resets, work, banking, are the target, because the fear of missing incoming mail is real and immediate. 'Mailbox full' sounds mundane and technical, so it draws less suspicion than a money request. The payoff for the scammer is outsized: an email password is the master key, so one careless login can cascade into every account tied to that address.

The exhibit
EXHIBIT · CHECK BEFORE YOU ENTER YOUR PASSWORD.
Received via: SMS EN
Your mailbox is almost full. Verify your account within 24 hours to keep receiving messages: mail-storage.example/verify

Illustrative example of the pattern, not a real message someone received.

How to verify it yourself

  • Check your storage inside your email provider's own settings, not through the texted link.
  • Providers show storage warnings in the account itself. They don't text a link to a separate domain.
  • mail-storage.example is nobody's real mail provider; the generic host is the giveaway.
  • If worried, open your email by typing the provider's address yourself and review usage there.

Common questions

is mail-storage.example a real email provider

No. Email runs on your provider's own domain, not a generic 'mail-storage' on .top. That page is a fake login harvesting your email password.

does an email service text you to verify storage

No. Storage limits are shown inside your inbox and settings. A text linking to an outside 'verify' page is a phishing attempt, not a provider notice.

why does the mailbox text give me 24 hours

The deadline is fake pressure. Losing mail feels serious, so the clock rushes you to log in on the fake page before you check the domain.

is a 'mailbox full verify now' message a scam

Yes, when it uses a look-alike link and a deadline. Real storage warnings never require you to re-verify your account on a separate site.

If you already responded

  1. Change your email password immediately from the real provider site and enable two-factor authentication.
  2. Review recovery email, forwarding rules, and connected apps for anything you didn't set up.
  3. Report it at reportfraud.ftc.gov and warn contacts if your account may have been misused.

Source: FTC, How To Recognize and Avoid Phishing Scams