垃圾邮件隔离Exchange ServerSpam quarantine in Exchange Server

许多组织都受相关法律或法规约束,要求保留或传递所有的合法电子邮件。Many organizations are bound by legal or regulatory requirements to preserve or deliver all legitimate email messages. 在Exchange Server中,垃圾邮件隔离是内容筛选器代理的一项功能,它通过提供标识为垃圾邮件的邮件的临时存储位置来降低丢失合法传入电子邮件的风险。In Exchange Server, spam quarantine is a feature of the Content Filter agent that reduces the risk of losing legitimate incoming email messages by providing a temporary storage location for messages that are identified as spam. 垃圾邮件隔离基本上与 2010 Exchange Server无变化。Spam quarantine is basically unchanged from Exchange Server 2010.

内容筛选器代理标识为垃圾邮件的邮件被封装在未送达报告 (也称为 NDR、传递状态通知、DSN 或退回邮件) 并传递到组织内部的指定垃圾邮件隔离邮箱。Messages that are identified as spam by the Content Filter agent are wrapped in a non-delivery report (also known as an NDR, delivery status notification, DSN, or bounce message) and delivered to the designated spam quarantine mailbox inside the organization. 管理员可以使用 Microsoft Outlook检查垃圾邮件隔离邮箱中的邮件,并采取适当的措施。Administrators can use Microsoft Outlook to review the messages in the spam quarantine mailbox and take appropriate action. 例如,可以删除邮件,或将合法邮件释放给预期收件人。For example, you can delete messages, or release legitimate messages to their intended recipients. 此外,你可以将垃圾邮件隔离邮箱配置为在指定时间段之后自动删除邮件。In addition, you can configure the spam quarantine mailbox to automatically delete messages after a designated time period.

若要使用垃圾邮件隔离,请按照以下步骤操作:To use the spam quarantine, follow these steps:

  1. 验证是否启用了内容筛选功能。Verify content filtering is enabled.

  2. 创建专门的邮箱用于隔离垃圾邮件。Create a dedicated mailbox for spam quarantine.

  3. 指定垃圾邮件隔离邮箱。Specify the spam quarantine mailbox.

  4. 配置 SCL 隔离阈值。Configure the SCL quarantine threshold.

  5. 管理垃圾邮件隔离邮箱。Manage the spam quarantine mailbox.

  6. 根据需要调整 SCL 隔离阈值。Adjust the SCL quarantine threshold as needed.

有关详细说明,请参阅配置垃圾邮件隔离邮箱For detailed instructions, see Configure a spam quarantine mailbox.

更多信息More information

内容筛选器代理评估传入的邮件,并针对每封邮件 (SCL) 垃圾邮件可信度。The Content Filter agent evaluates incoming messages and applies a spam confidence level (SCL) to each message. SCL 是一个从 0 到 9 的数字值,其中 0 被视为垃圾邮件的可能性很小,9 被视为垃圾邮件的可能性很大。The SCL is a numeric value from 0 through 9, where 0 is considered very unlikely to be spam, and 9 is considered very likely to be spam. 可以将内容筛选器代理配置为根据更高的 SCL 值逐步执行更严重的操作。You can configure the Content Filter agent to take progressively more serious action based on a higher SCL value. 例如:For example:

  • SCL 为 8 或更高:以静默方式删除邮件。SCL is 8 or higher: Silently delete the message.

  • SCL 为 7: 拒绝包含 NDR 的邮件。SCL is 7: Reject the message with an NDR.

  • SCL 为 6: 隔离邮件。SCL is 6: Quarantine the message.

  • SCL 为 5: 将邮件发送到用户的"垃圾邮件"文件夹。SCL is 5: Deliver the message to the user's Junk Email folder.

  • SCL 为 4 或更低:将邮件发送到用户的收件箱。SCL is 4 or lower: Deliver the message to the user's Inbox.

有关详细信息,请参阅垃圾邮件可信度Exchange SCL (阈值) 级别For more information, see Exchange spam confidence level (SCL) thresholds.

监视垃圾邮件隔离邮箱时,可以通过检查应用于邮件的 X 标头 (的反垃圾邮件标记) 查看反垃圾邮件筛选的结果。As you monitor the spam quarantine mailbox, you can view the results of antispam filtering by inspecting the antispam stamps (X-header fields) that were applied to the message. 有关详细信息,请参阅在 Outlook 中查看反垃圾邮件标记For more information, see View antispam stamps in Outlook. 然后,您可以调整 SCL 阈值,以更精确地筛选进入组织的垃圾邮件。You can then adjust the SCL thresholds to more accurately filter the spam that's coming into your organization. 例如:For example:

  • 发送到垃圾邮件隔离邮箱的合法邮件过多, (误报过多) 。Too many legitimate messages are sent to the spam quarantine mailbox (too many false positives).

  • 发送到隔离邮箱的明显垃圾邮件过多 (拒绝或删除的垃圾邮件) 。Too many obvious spam messages are sent to the quarantine mailbox (not enough spam is rejected or deleted).

若要将垃圾邮件隔离中的误报释放给目标收件人,请参阅下列主题:To release a false positive from the spam quarantine to the intended recipient, see the following topics: