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Final Notice: Legacy Mailbox Data Cleared Today

2026-04-25 09:00:00 · 11 Views · Edited at 2026-04-26 20:57:59

Final Notice: Legacy Mailbox Data Cleared Today

Date of action: 2026-04-25

This is the last notice in a long sequence. Today the legacy mailboxes that never migrated to the modern Mail.sb system are being cleared. Their data — messages, contacts, per-mailbox settings — is wiped, and the addresses themselves return to the public registration pool.

How we got here

Migration to the new stack was published as part of the Mail.sb roadmap roughly a year and a half ago. Two of the most-cited notices from that period are still on this blog:

The original cut-off in post #18 was April 1st, 2025. That deadline came and went, and we kept the data anyway — for more than a full year past the published date — in case anyone came back. We sent reminders, answered tickets, and left the migration page open at https://mail.sb/i/ the entire time.

What happens today

For each affected legacy mailbox:

  • Mailbox storage (messages, folders, drafts) is permanently deleted.
  • Settings, filters, and aliases tied to that mailbox are removed.
  • The local-part — the bit before the @ — is released back to public registration.

Once an address reopens, anyone may claim it. We will not hold names in reserve, and we will not forward mail received after today to a previous owner — even if they reach out tomorrow.

No further recovery

We want this part to be unambiguous: data cleared today is not recoverable. We do not keep a hidden backup of legacy mailboxes for case-by-case restoration. There is no internal "undelete" we can run by ticket. The migration window was extended generously and is now closed.

If you already migrated

Nothing changes for you. Your mailbox, IMAP/SMTP credentials, aliases, and stored mail are unaffected. You can ignore this notice.

If you used to have one of these addresses

You are welcome to register on the modern system at https://mail.sb/i/. If your previous local-part is still free at the moment you sign up, you can take it — but it is now first-come, first-served like any other name.

Thanks to everyone who migrated when we asked. This step closes the loop on a transition that has been running quietly in the background for too long.

— The Mail.sb Team

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