由于昨天开启了Hotmail的POP3下载，一个晚上自动下载了近千封hotmail里邮件，连05年的邮件都被翻出来了，还真彻底。早上正用着，Gmail忽然不能使用了，刷新后看到一下信息：

Account Lockdown: Unusual Activity Detected

This account has been locked down due to unusual account activity. It may take up to 24 hours for you to regain access.

Unusual account activity includes, but is not limited to:

  1. Receiving, deleting, or downloading large amounts of mail via POP in a short period of time.
  2. Sending a large number of undeliverable messages (messages that bounce back).
  3. Using file-sharing or file-storage software, browser extensions, or
    third party software that automatically logs in to your account.
  4. Leaving multiple instances of your Gmail account open.
  5. Browser-related issues. Please note that if you find your browser
    continually reloading while attempting to access your Inbox, it’s
    probably a browser issue, and it may be necessary to clear your
    browser’s cache and cookies.

If you feel that you have been using your Gmail account according to the Gmail Terms of Use, you can troubleshoot your problem by clicking here.

估计自己是因为“Receiving, deleting, or downloading large amounts of mail via POP in a short period of time.”被封的，看了这里的信息，觉得应该还不是太担心。昨天还给同事宣扬了Google产品的优越性，今天就……现在是中午12点14分，看什么时候解封呢？

奉劝各位，POP3代收别用的太过分，整合是有代价的。

【更新】12：20分，已解锁，什么都没发生过一样。算是小小的警告吧。