PanicStation.org
UK USA
us Technology & digital loss

What to do if…
your email inbox is full and new messages are bouncing

Produced and maintained by PanicStation.org Published: Last reviewed: Editorial policy USA guide

Short answer

Free space inside the real email account, including Trash or Deleted Items and Spam or Junk, then test delivery from another address and ask time-sensitive senders to resend.

Do not do these things

  • Don’t click “upgrade storage” links inside unexpected emails, texts, or pop-ups; unexpected storage or payment warnings can be phishing.
  • Don’t mass-delete messages you may need for taxes, benefits, healthcare, legal matters, work, school, or disputes.
  • Don’t assume bounced messages will automatically appear later; some providers reject messages while you are over quota.
  • Don’t try to fix the same mailbox from several devices at once; use one trusted device first so you can see what changed.
  • Don’t change passwords or payment details from a warning link. Open the provider’s app or website yourself.

What to do now

  1. Open the account the safe way.
    Use the provider’s official app, or type the provider’s website address yourself. Do not use a link from the warning message.

  2. Confirm the warning inside account settings.
    Look for storage, quota, or account usage inside the signed-in account. If the only warning is in an email or pop-up, treat it as suspicious until the account itself shows the same problem.

  3. Free space where it usually counts first.
    Do these in order:

    • Empty Trash or Deleted Items.
    • Empty Spam or Junk.
    • Find a few very large emails or attachments you no longer need and delete those.
    • Empty Trash or Deleted Items again after deleting large messages.
    • If your account settings show shared storage across mail, files, or photos, remove large unwanted items from those areas too.

  4. Test whether new mail is arriving.
    Send a message to yourself from another email address, or ask someone you trust to send one. If it still bounces, free more space and test again after a pause. Some providers may take longer to update storage after large deletions.

  5. Check sending as well as receiving.
    Once a test message arrives, reply from the affected inbox. This confirms you can send and receive, not just open the mailbox.

  6. Ask critical senders to resend.
    Make a short list of likely missed senders, such as your bank, credit card company, employer, school, insurer, delivery service, medical portal, or password reset service. Contact them through a known website, app, or phone number and ask them to resend anything time-sensitive.

  7. For a work or school mailbox, contact IT before deleting important mail.
    Say: “My mailbox quota is reached and senders are getting bounce messages.” Ask whether there is an archive mailbox, retention rule, or quota increase process before you delete work or school records.

  8. If the warning looks fake, report it after you have protected delivery.
    If a suspicious message told you to click, pay, or enter your password, you can forward the phishing email to reportphishing@apwg.org and report it to the FTC at ReportFraud.ftc.gov. Then delete the suspicious message.

What can wait

  • Deep cleanup, labels, rules, newsletter unsubscribes, and long-term archiving can wait.
  • Switching to a new email address can wait.
  • Paying for more storage can wait until you confirm inside the real account settings that cleanup is not enough.
  • Deciding what to do with old records can wait unless IT, your provider, or a trusted professional tells you there is an urgent retention issue.

Important reassurance

A full mailbox is disruptive, but it is usually fixable in small steps. The immediate goal is only to restore delivery, test it, and get important messages resent.

Scope note

These are first steps for stabilising email delivery. Later decisions about account security, workplace retention, school systems, legal records, or long-term storage may need help from the provider, IT, or another qualified specialist.

Important note

This guide is general information, not professional IT, legal, financial, therapeutic, or other professional advice. If you see unknown sign-ins, new forwarding rules, messages you did not send, or password reset activity you did not start, use official provider support and account-security guidance.

Additional Resources

Closely connected guides that may be useful during the same situation or its immediate aftermath.

About this guide

This guide was produced and is maintained by PanicStation.org using its published editorial process. Official and specialist sources are checked where relevant, and AI-assisted tools may be used for drafting, organisation, and consistency checks. The site operator remains responsible for publication, revision, and removal decisions.

Support us