Mercari incident
Service Notice: A Known USPS Industry Issue May Affect Some Tracking Updates
Resolved after 19 days 1 hour, affecting Shipping, on August 23, 2026.
What's happening Fraudsters are increasingly attacking USPS by creating counterfeit, unpaid shipping labels — a scheme known as Mailer ID (MID) fraud. This is a growing industry-wide USPS issue affecting all shipping platforms, not specific to us or your account security. As a result, some customers may see tracking updates showing delivery to an unfamiliar address. In most cases, your package will still arrive as expected. What to do - If your tracking shows an incorrect delivery address, please contact Customer Support. - If you were charged a clearly incorrect shipping adjustment, please contact us as well. Thank you for your patience.
Affected components
Update timeline
- investigating Aug 23, 2026, 03:55 AM UTC
What's happening Fraudsters are increasingly attacking USPS by creating counterfeit, unpaid shipping labels — a scheme known as Mailer ID (MID) fraud. This is a growing industry-wide USPS issue affecting all shipping platforms, not specific to us or your account security. As a result, some customers may see tracking updates showing delivery to an unfamiliar address. In most cases, your package will still arrive as expected. What to do - If your tracking shows an incorrect delivery address, please contact Customer Support. - If you were charged a clearly incorrect shipping adjustment, please contact us as well. Thank you for your patience.
- resolved Sep 11, 2026, 05:14 AM UTC
This incident has been resolved.
Your product runs on more than Mercari
Add the vendors you depend on and get one message when any of them reports trouble. Free for 3 vendors, no card.
Amazon Web Services