Double click on the decrypt icon just dropped to configure the encryption Settings.
双击刚刚拖放的解密图标，以配置加密设置。
Click add to address book to save the sender's encryption preferences to your address book.
单击添加到通讯簿，在通讯簿中保存发件人的加密首选项。
Click add to address book to save the sender's encryption preferences to your address book.
单击添加到通讯簿，在通讯簿中保存发件人的加密首选项。
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