邮箱指南
邮箱指南 collects every guide on this site about temporary inboxes, verification codes, spam and mail security. Each page answers one concrete question. Nothing here repeats general advice. You can start from the symptom you actually have.
Why this index exists
Most mailbox problems look alike at first. A code never arrives. A message bounces back. A folder fills with junk. The difference is usually in the details, and the details are what these articles examine. Temporary inboxes are useful and limited at the same time, and a 邮箱指南 that claims otherwise is not worth reading.
Tools, codes and throwaway addresses
The tool side covers temporary, disposable and ten-minute addresses. It explains what each type is good for and how long an inbox survives. It compares which services really deliver, and how to keep twenty aliases on one domain under control. If you only need a mailbox for a single signup, the short checklists are enough. If you manage accounts for a team, the longer comparisons explain the trade-offs.
Security, headers and recovery
The security side gets the same treatment. You will find how to read mail headers, and which phishing signals survive a careful look. There are pages on why reporting spam sometimes increases it, and on what to do in the first hour after a password leak. Settings most people never touch also appear here: forwarding rules, attachment handling, two-step verification, encryption and password habits.
How to use these guides
Where a method has a failure rate, the text says so. It also explains how to check the result yourself. That is why most checklists end with a test you can run on your own account.
If you are new, start with the pages on temporary addresses. If you already know the basics, jump to the troubleshooting articles on bounced mail, missing codes and suspicious messages. Treat this 邮箱指南 as a starting point, then follow the internal links inside each article. Every step works from a normal mailbox in a browser.