Exchange SCL 阈值 (垃圾邮件) 级别Exchange spam confidence level (SCL) thresholds

备注

2016 年 11 月,Microsoft 停止为 Exchange 和 Outlook 中的 SmartScreen 筛选器生成垃圾邮件定义更新。In November, 2016, Microsoft stopped producing spam definition updates for the SmartScreen filters in Exchange and Outlook. 现有的 SmartScreen 垃圾邮件定义已就位,但其有效性可能会随着时间的推移而降低。The existing SmartScreen spam definitions were left in place, but their effectiveness will likely degrade over time. 有关详细信息,请参阅“停止为 Outlook 和 Exchange 中的 SmartScreen 提供支持”。For more information, see Deprecating support for SmartScreen in Outlook and Exchange.

在Exchange Server中,您可以根据垃圾邮件可信度和 SCL 阈值定义 (特定) 操作。In Exchange Server, you can define specific actions for messages according to spam confidence level (SCL) thresholds. 例如,可以为在运行内容筛选器代理的 Exchange 服务器上拒绝、删除或隔离邮件定义不同的阈值。For example, you can define different thresholds for rejecting, deleting, or quarantining messages on an Exchange server that's running the Content Filter agent. Exchange Server 2010 中的这些 SCL 阈值和操作基本未变These SCL thresholds and actions are basically unchanged from Exchange Server 2010

内容筛选器代理会在反垃圾邮件周期的后期向邮件分配 SCL 分级(在其他反垃圾邮件代理处理入站邮件之后)。The Content Filter agent assigns an SCL rating to messages late in the antispam cycle, after the other antispam agents have processed inbound messages. 在内容筛选器代理处理入站邮件之前,其他很多反垃圾邮件代理处理这些邮件的方式是确定的。Many of the other antispam agents that process inbound messages before the Content Filter agent are absolute in how they act on a message. 例如,边缘传输服务器上的连接筛选代理将拒绝来自基于实时阻止列表的 IP 地址的邮件。For example, the Connection Filtering agent on an Edge Transport server rejects messages from IP addresses based on a real-time block list. 同样,发件人筛选器代理将基于阻止的发件人列表阻止邮件,收件人筛选器代理将基于阻止的收件人列表阻止邮件。Similarly, the Sender Filter agent blocks messages based on a list of blocked senders, and the Recipient Filter agent blocks messages based on a list of blocked recipients. 通过首先处理邮件,其他反垃圾邮件代理大大减少需要内容筛选器代理处理的邮件数(在大多数情况下,极其不受欢迎的邮件)。By processing messages first, the other antispam agents greatly reduce the number of messages (in most cases, blatantly unwanted messages) that need to be processed by the Content Filter agent. 有关反垃圾邮件代理处理邮件的顺序详细信息,请参阅反垃圾邮件Exchange Server。For more information about the order that antispam agents process messages in, see Antispam protection in Exchange Server.

由于内容筛选不精确,必须能够根据不同的 SCL 值调整内容筛选器代理的操作。通过认真监视和调整 SCL 阈值,可最大程度地减少以下各条件:Because content filtering isn't an exact science, it's important to be able to adjust the actions of the Content Filter agent based on different SCL values. By carefully monitoring and adjusting the SCL thresholds, you can minimize the following conditions:

  • 垃圾邮件隔离邮箱中的邮件数和大小。The number of messages in and the size of the spam quarantine mailbox.

  • 错误地隔离或放置在用户的垃圾邮件文件夹(误报)的合法电子邮件数。The number of legitimate email messages that are mistakenly quarantined or placed in the user's Junk Email folder (false positives).

  • 用户邮箱中收到的攻击性垃圾邮件数(邮件甚至不应到达垃圾邮件文件夹)。The number of offensive spam email messages that reach the user's mailbox (messages shouldn't even reach the Junk Email folder).

  • 到达用户收件箱的垃圾邮件数。The number of spam email messages that reach the user's Inbox.

内容筛选器代理中的这种 SCL 阈值与用户邮箱中的 SCL 垃圾邮件文件夹组合,将帮助您实现更全面和精确的反垃圾邮件策略,可以帮助您降低在整个 Exchange 组织中部署和维护反垃圾邮件解决方案的总成本。The combination of this SCL thresholds in the Content Filter agent and the SCL Junk Email folder threshold on the user's mailbox helps you implement a more comprehensive and precise antispam strategy, which can help you reduce the overall cost of deploying and maintaining an antispam solution across your Exchange organization.

SCL 阈值操作SCL threshold actions

通过调整 SCL 阈值操作,可以对成为垃圾邮件可能性较高的邮件所执行的内容筛选操作逐渐进行升级。若要理解该项功能,理解不同的 SCL 阈值操作及其实现方式将是很有帮助的:By adjusting SCL threshold actions, you can escalate the content filtering action taken on messages that have a greater probability of being spam. To understand this functionality, it's helpful to understand the different SCL threshold actions and how they're implemented:

  • SCL 删除阈值:当邮件的 SCL 值大于或等于 SCL 删除阈值时,内容筛选器代理将静默删除邮件。SCL delete threshold: When the message's SCL value is greater than or equal to the SCL delete threshold, the Content Filter agent silently deletes the message. 没有协议级别的通信告诉源邮件服务器或发件人该邮件已删除。There's no protocol-level communication that tells the source messaging server or sender that the message was deleted. 如果邮件的 SCL 值小于 SCL 删除阈值,内容筛选器代理会将 SCL 值与 SCL 拒绝阈值进行比较。If the message's SCL value is lower than the SCL delete threshold, the Content Filter agent compares the SCL value to the SCL reject threshold.

  • SCL 拒绝阈值:当邮件的 SCL 值大于或等于 SCL 拒绝阈值但小于 SCL 删除阈值时,内容筛选器代理将拒绝邮件并将拒绝响应发送给发送系统。SCL reject threshold: When the message's SCL value is greater than or equal to the SCL reject threshold, but less than the SCL delete threshold, the Content Filter agent rejects the message and sends a rejection response to the sending system. 可以自定义拒绝响应。You can customize the rejection response. 某些情况下,未送达报告(也称为 NDR,传递状态通知、DSN 或退回邮件)将发送给邮件的原始发件人。In some cases, a non-delivery report (also known as an NDR, delivery status notification, DSN, or bounce message) is sent to the original sender of the message. 如果邮件的 SCL 值小于 SCL 拒绝阈值和 SCL 删除阈值,内容筛选器代理将 SCL 值与 SCL 隔离阈值进行比较。If the message's SCL value is lower than the SCL reject threshold, the Content Filter agent compares the SCL value to the SCL quarantine threshold.

  • SCL 隔离阈值:当邮件的 SCL 值大于或等于 SCL 隔离阈值,但小于 SCL 拒绝阈值时,内容筛选器代理将邮件发送到垃圾邮件隔离邮箱。SCL quarantine threshold: When the message's SCL value is greater than or equal to the SCL quarantine threshold, but less than the SCL reject threshold, the Content Filter agent sends the message to the spam quarantine mailbox. 有关配置垃圾邮件隔离邮箱的详细信息,请参阅 配置垃圾邮件隔离邮箱For more information about the configuring the spam quarantine mailbox, see Configure a spam quarantine mailbox.

    管理员需要定期检查垃圾邮件隔离邮箱,以验证对非常明显的垃圾邮件进行必要的隔离(SCL 隔离阈值太高)和不隔离明显合法电子邮件(SCL 隔离阈值太低)。要查看隔离邮件的反垃圾邮件测试结果,请参阅在 Outlook 中查看反垃圾邮件标记Administrators need periodically review the spam quarantine mailbox to verify that too much obvious spam isn't unnecessarily quarantined (the SCL quarantine threshold is too high), and that too much legitimate email isn't quarantined (the SCL quarantine threshold is too low). To view the results of antispam tests on quarantined messages, see View antispam stamps in Outlook.

    如果邮件的 SCL 值低于 SCL 隔离阈值,邮件将传递到适当的邮箱服务器,在其中计算组织的或邮箱的 SCL 垃圾邮件文件夹阈值。If the message's SCL value is lower than the SCL quarantine threshold, the message is delivered to the appropriate Mailbox server, where the organization's or mailbox's SCL Junk Email folder threshold is evaluated.

  • SCL 垃圾邮件文件夹阈值:如果邮件的 SCL 值大于为组织或邮箱配置的 SCL"垃圾邮件"文件夹阈值,邮件将传递到"垃圾邮件"文件夹。SCL Junk Email folder threshold: If the message's SCL value is greater than the SCL Junk Email folder threshold that's configured for the organization or on the mailbox, the message is delivered to the Junk Email folder. 如果邮件的 SCL 值等于或小于垃圾邮件文件夹阈值,则将邮件传递到收件箱。If the message's SCL value is equal to or lower than the Junk Email folder threshold, the message is delivered to the Inbox.

    与内容筛选器代理控制的其他 SCL 阈值不同,SCL 垃圾邮件文件夹阈值由每个邮箱中默认启用的垃圾邮件规则(隐藏的收件箱规则,名为垃圾电子邮件规则)控制。内容筛选器代理将 SCL 值分配给一个邮件,但垃圾邮件规则负责将邮件传递到垃圾邮件文件夹。有关详细信息,请参阅利用 Exchange 命令行管理程序 来启用或禁用邮箱中的垃圾邮件规则Unlike the other SCL thresholds that are controlled by the Content Filter agent, the SCL Junk Email folder threshold is controlled by the junk email rule (a hidden Inbox rule named Junk E-mail Rule) that's enabled by default in every mailbox. The Content Filter agent assigns the SCL value to a message, but the Junk E-mail Rule is responsible for delivering the message to the Junk Email folder. For more information, see Use the Exchange Management Shell to enable or disable the junk email rule in a mailbox.

内容筛选器代理和“垃圾邮件”文件夹以不同方式处理 SCL 阈值。内容筛选器代理使用大于或等于 SCL 阈值的值,但“垃圾邮件”文件夹使用大于该阈值的值。例如,如果用 SCL 删除阈值 8 配置内容筛选器代理,则 SCL 为 8 或更高值的所有邮件都将以静默方式删除。但是,如果用 SCL 阈值 4 配置“垃圾邮件”文件夹,SCL 为 5 或更高值的所有邮件都将移动至“垃圾邮件”文件夹,而 SCL 为 4 或更低值的邮件将传递到收件箱。The Content Filter agent and the Junk Email folder process the SCL threshold value differently. The Content Filter agent uses greater than or equal to for the SCL threshold value, but the Junk Email folder uses greater than. For example, if you configure the Content Filter agent with an SCL delete threshold of 8, all messages with an SCL of 8 or higher are silently deleted. However, if you configure the Junk Email folder with an SCL threshold of 4, all messages with an SCL of 5 or higher are moved to the Junk Email folder, while messages with an SCL of 4 or lower are delivered to the Inbox.

SCL 阈值的范围Scope of SCL thresholds

可以在下列位置配置 SCL 阈值:You can configure the SCL thresholds in the following locations:

  • 服务器配置:内容筛选器代理上的 SCL 删除、拒绝和隔离阈值。Server configuration: The SCL delete, reject, and quarantine thresholds on the Content Filter agent.

  • 组织配置:组织上的 SCL 垃圾邮件文件夹Exchange值。Organization configuration: The SCL Junk Email folder threshold value on the Exchange organization.

  • 邮箱配置:特定邮箱上的 SCL 阈值。Mailbox configuration: The SCL thresholds on specific mailboxes.

内容筛选器代理上的 SCL 阈值SCL thresholds on the Content Filter agent

您可以使用 Set-ContentFilterConfig cmdlet 在运行内容筛选器代理的边缘传输服务器或邮箱服务器上配置 SCL 删除、拒绝和隔离阈值。一定时间后,在分析反垃圾邮件日志和报告功能所提供的垃圾邮件功能和度量值时,可以根据需要对这些 SCL 阈值进行其他调整。You use the Set-ContentFilterConfig cmdlet to configure the SCL delete, reject, and quarantine thresholds on an Edge Transport server or Mailbox server where you're running the Content Filter agent. Over time, as you analyze the spam functionality and metrics provided by the antispam logging and reporting features, you can make additional adjustments to these SCL thresholds as needed.

下表中介绍了可对 Set-ContentFilterConfig cmdlet 使用的 SCL 阈值参数。The SCL threshold parameters that are available on the Set-ContentFilterConfig cmdlet are described in the following table.

参数Parameter 说明Description
SCLDeleteEnabledSCLDeleteEnabled 启用和禁用 SCL 删除阈值。Enables and disables the SCL delete threshold. 有效值为 $true$falseValid values are $true or $false. 默认值为 $false ,这意味着 SCL 删除阈值在默认情况下未启用。The default value is $false, which means the SCL delete threshold isn't enabled by default.
使用 SCLDeleteThreshold 参数设置 SCL 删除阈值。You set the SCL delete threshold value with the SCLDeleteThreshold parameter.
SCLDeleteThresholdSCLDeleteThreshold 启用 SCL 删除阈值时使用的 SCL 值。以静默方式删除 SCL 值大于或等于此值的邮件。最大值为 9,也是默认值。The SCL value that's used when the SCL delete threshold is enabled. A message with an SCL value that's greater than or equal to this value is silently deleted. The maximum value is 9, which is also the default value.
当您启用 SCL 删除阈值时,此值应大于所有其他 SCL 阈值。When you enable the SCL delete threshold, this value should be greater than all other SCL thresholds.
SCLRejectEnabledSCLRejectEnabled 启用和禁用 SCL 拒绝阈值。Enables and disables the SCL reject threshold. 有效值为 $true$falseValid values are $true or $false. 默认值为 $true ,表示 SCL 拒绝阈值默认启用。The default value is $true, which means the SCL reject threshold is enabled by default.
使用 SCLRejectThreshold 参数设置 SCL 拒绝阈值。You set the SCL reject threshold value with the SCLRejectThreshold parameter.
SCLRejectThresholdSCLRejectThreshold 启用 SCL 拒绝阈值时使用的 SCL 值。拒绝 SCL 值大于或等于此值的邮件,将 NDR 发送给发件人。最大值为 9,默认值为 7。The SCL value that's used when the SCL reject threshold is enabled. A message with an SCL value that's greater than or equal to this value is rejected, and an NDR is sent to the sender. The maximum value is 9, and the default value is 7.
当启用 SCL 拒绝阈值时,此值应小于 SCL 删除阈值,但大于 SCL 隔离和垃圾邮件文件夹阈值。When you enable the SCL reject threshold, this value should be less than the SCL delete threshold, but greater than the SCL quarantine and Junk Email folder thresholds.
SCLQuarantineEnabledSCLQuarantineEnabled 启用和禁用 SCL 隔离阈值。Enables and disables the SCL quarantine threshold. 有效值为 $true$falseValid values are $true or $false. 默认值为 $false ,这意味着 SCL 隔离阈值在默认情况下未启用。The default value is $false, which means the SCL quarantine threshold isn't enabled by default.
使用 SCLQuarantineThreshold 参数设置 SCL 隔离阈值。You set the SCL quarantine threshold value with the SCLQuarantineThreshold parameter.
有关配置隔离邮件所需的垃圾邮件隔离邮箱的详细信息,请参阅配置垃圾邮件隔离邮箱For more information about the configuring the spam quarantine mailbox that's required to quarantine messages, see Configure a spam quarantine mailbox.
SCLQuarantineThresholdSCLQuarantineThreshold 启用 SCL 隔离阈值时使用的 SCL 值。SCL 值大于或等于此值的邮件被重定向到垃圾邮件隔离邮箱。最大值为 9,也是默认值。 The SCL value that's used when the SCL quarantine threshold is enabled. A message with an SCL value that's greater than or equal to this value is redirected to the spam quarantine mailbox. The maximum value is 9, which is also the default value.
当启用 SCL 隔离阈值时,此值应小于 SCL 拒绝阈值,但大于 SCL 垃圾邮件文件夹阈值(Set-OrganizationConfigSet-Mailbox cmdlet 上的 SCLJunkThreshold 参数)。When you enable the SCL quarantine threshold, this value should be less than the SCL reject threshold, but greater than the SCL Junk Email folder threshold (the SCLJunkThreshold parameter on the Set-OrganizationConfig or Set-Mailbox cmdlets).

有关在内容筛选器代理上配置的 SCL 阈值的示例,请参见使用 Exchange 命令行管理程序配置内容筛选的 SCL 阈值For examples of configuring the SCL thresholds on the Content Filter agent, see Use the Exchange Management Shell to configure SCL thresholds for content filtering.

组织上的 SCL 阈值SCL thresholds on the organization

使用 SCLJunkThreshold 参数 Set-OrganizationConfig cmdlet 为组织中的所有邮箱配置 SCL 垃圾邮件文件夹阈值。这是唯一可以在组织级别配置的 SCL 阈值。SCL 值通常由内容筛选器代理向邮件分配。You use the SCLJunkThreshold parameter Set-OrganizationConfig cmdlet to set the SCL Junk Email folder threshold value for all mailboxes in the organization. This is the only SCL threshold that you can configure at the organization level. The SCL value is typically assigned to messages by the Content Filter agent.

下表介绍了 Set-OrganizationConfig cmdlet 上的 SCLJunkThreshold 参数。The SCLJunkThreshold parameter on the Set-OrganizationConfig cmdlet is described in the following table.

参数Parameter 说明Description
SCLJunkThresholdSCLJunkThreshold 在邮箱上启用垃圾邮件规则且未配置 SCL 垃圾邮件文件夹阈值时使用的 SCL 值。The SCL value that's used when the junk email rule is enabled in the mailbox, and an SCL Junk Email folder threshold isn't configured on the mailbox.
SCL 值大于此值的邮件将由垃圾邮件规则移动到垃圾邮件文件夹。最大值为 9,并且默认值为 4,这意味着 SCL 值为 5 或更高的邮件被移到垃圾邮件文件夹中,并且 SCL 值等于或小于 4 的邮件传递到收件箱。A message with an SCL value that's greater than this value is moved to the Junk Email folder by the junk email rule. The maximum value is 9, and the default value is 4, which means that messages with an SCL value of 5 or higher are moved to the Junk Email folder, and messages with an SCL value of 4 or lower are delivered to the Inbox.

注意Notes:

  • SCL 垃圾邮件文件夹阈值是默认启用的,因为默认情况下,在所有邮箱中启用垃圾邮件规则。如果邮箱中已禁用垃圾邮件规则,则会禁用邮箱的 SCL 垃圾邮件文件夹阈值(组织或邮箱)。The SCL Junk Email folder threshold is enabled by default, because the junk email rule is enabled by default in all mailboxes. If the junk email rule is disabled in the mailbox, the SCL Junk Email folder threshold (for the organization or the mailbox) is disabled for the mailbox.

  • 您可以使用 Set-MailboxJunkEmailConfiguration cmdlet 上的 Enabled 参数禁用邮箱中的垃圾邮件规则,但仅在邮箱在 Outlook (中以缓存 Exchange 模式) 或 web 上的 Outlook 打开之后。You can disable the junk email rule in a mailbox by using the Enabled parameter on the Set-MailboxJunkEmailConfiguration cmdlet, but only after the mailbox has been opened in Outlook (in Cached Exchange mode) or Outlook on the web.

  • 您可以控制 Web 上的 Outlook 中的垃圾邮件设置可用性,这将阻止用户启用或禁用自己的邮箱中的垃圾邮件规则。You can control the availability of the junk email settings in Outlook on the web, which prevents users from enabling or disabling the junk email rule in their own mailbox.

有关详细信息,请参阅Configure Exchange antispam settings on mailboxes主题。For more information, see the Configure Exchange antispam settings on mailboxes topic.

邮箱上的 SCL 阈值SCL thresholds on a mailbox

您可以使用 Set-Mailbox cmdlet 在邮箱上配置所有的 SCL 阈值。对 Set-ContentFilterConfig cmdlet 可用的 SCL 参数同样对 Set-Mailbox cmdlet 可用:You can use the Set-Mailbox cmdlet to configure all SCL thresholds on a mailbox. The same SCL parameters that are available on the Set-ContentFilterConfig cmdlet are also available on the Set-Mailbox cmdlet:

  • SCLDeleteEnabledSCLDeleteEnabled

  • SCLDeleteThresholdSCLDeleteThreshold

  • SCLRejectEnabledSCLRejectEnabled

  • SCLRejectThresholdSCLRejectThreshold

  • SCLQuarantineEnabledSCLQuarantineEnabled

  • SCLQuarantineThresholdSCLQuarantineThreshold

Set-ContentFilterConfig 上的 SCL 阈值参数不同 ,Set-Mailbox cmdlet 上的参数也接受值 (该值为空) ,这是邮箱上所有 SCL 阈值的默认值。 $nullUnlike the SCL threshold parameters on Set-ContentFilterConfig, the parameters on the Set-Mailbox cmdlet also accept the value $null (the value is blank), which is the default value for all SCL thresholds on the mailbox. 这个空默认值表示邮箱上未配置 SCL 阈值,所以内容筛选器代理将其 SCL 阈值设置用于发送到该邮箱的邮件。This blank default value indicates that no SCL thresholds are configured on the mailbox, so the Content Filter agent uses its SCL threshold settings for messages that are sent to the mailbox.

配置邮箱的 SCL 阈值后(即此值不为空时),对于发送到该邮箱的邮件,此设置会覆盖内容筛选器代理上对应的 SCL 阈值设置。在邮箱上配置的 SCL 阈值存储在 Active Directory 中,并由 Microsoft Exchange EdgeSync 服务 复制到已订阅的边缘传输服务器。If you configure an SCL threshold on a mailbox (the value isn't blank), the setting override the corresponding SCL threshold on the Content Filter agent for messages that are sent to the mailbox. The SCL thresholds that you configure on the mailbox are stored in Active Directory, and are replicated to subscribed Edge Transport servers by the Microsoft Exchange EdgeSync service.

结果类似于 Set-OrganizationConfigSet-Mailbox 上可用的 SCLJunkThreshold 参数:在邮箱 (上配置的 SCL 垃圾邮件文件夹阈值值不为空) 会覆盖发送到邮箱的邮件在组织上的 SCL 值。The results are similar for the SCLJunkThreshold parameter that's available on Set-OrganizationConfig and Set-Mailbox: the SCL Junk Email folder threshold value that you configure on the mailbox (the value isn't blank) overrides the SCL value on the organization for messages that are sent to the mailbox.

备注

对于接收自通讯组的邮件,邮箱上的 SCL 阈值不是强制的。SCL thresholds on a mailbox are not enforced for messages that are received from distribution groups.

邮箱的 SCL 阈值设置是唯一的,能够启用或禁用 SCL 垃圾邮件文件夹阈值。The SCL threshold setting that's unique to a mailbox is the ability to enable or disable the SCL Junk Email folder threshold. SCLJunkEnabled 参数仅在 Set-Mailbox cmdlet 上可用,如下表所述。The SCLJunkEnabled parameter is only available on the Set-Mailbox cmdlet, and is described in the following table.

参数Parameter 说明Description
SCLJunkEnabledSCLJunkEnabled 启用和禁用邮箱上的 SCL 垃圾邮件文件夹阈值。Enables and disables the SCL Junk Email folder threshold on the mailbox. 有效值为 、 $true $false$null (空) 。Valid values are $true, $false, or $null (blank). 默认值为空 () ,这意味着未在邮箱上配置 SCL 垃圾邮件文件夹阈值,由邮箱中启用还是禁用垃圾邮件规则控制。 $nullThe default value is blank ($null), which means the SCL Junk Email folder threshold isn't configured on the mailbox, and is controlled by whether the junk email rule is enabled or disabled in the mailbox.
默认的 SCL 垃圾邮件文件夹阈值由 Set-OrganizationConfig cmdlet 上的 SCLJunkThreshold 参数设置。The default SCL Junk Email folder threshold value is set by the SCLJunkThreshold parameter on the Set-OrganizationConfig cmdlet. 您可以使用 Set-Mailbox cmdlet 上的 SCLJunkThreshold 参数覆盖邮箱的此值。You can override this value for the mailbox by using the SCLJunkThreshold parameter on the Set-Mailbox cmdlet.

注意Notes:

  • 您可以通过禁用邮箱中的垃圾邮件规则禁用邮箱上的 SCL 垃圾邮件文件夹阈值。但是,禁用该规则还会阻止该规则使用邮箱的安全列表集合(安全发件人列表、安全收件人列表、阻止的发件人名单)将邮件移动到垃圾邮件文件夹中,或将邮件移出垃圾邮件文件夹。You can disable the SCL Junk Email folder threshold on a mailbox by disabling the junk email rule in the mailbox. However, disabling the rule also prevents the rule from using the mailbox's safelist collection (Safe Senders list, Safe Recipients list, Blocked Senders list) to move messages to the Junk Email folder, or keep messages out of the Junk Email folder.

  • 即使在邮箱中禁用垃圾邮件规则和 SCL 垃圾邮件文件夹阈值,客户端 Outlook 垃圾电子邮件筛选器可以仍将邮件移到垃圾邮件文件夹。Even if the junk email rule is disabled in the mailbox, and the SCL Junk Email folder threshold is disabled on the mailbox, the client-side Outlook Junk Email Filter can still move messages to the Junk Email folder.

有关详细信息,请参阅Configure Exchange antispam settings on mailboxes主题。For more information, see the Configure Exchange antispam settings on mailboxes topic.

监视 SCL 阈值Monitoring the SCL thresholds

您可以使用文件夹中的几个内置脚本(如Get-AntispamSCLHistogram.ps1) %ExchangeInstallPath%Scripts 来收集筛选结果数据。 ****You can use several built-in scripts that are located in the %ExchangeInstallPath%Scripts folder, such as Get-AntispamSCLHistogram.ps1, for gathering filtering result data. 如果数据显示您需要立即进行调整,请重新配置 SCL 阈值。If the data indicates that you need to make immediate adjustments, reconfigure the SCL thresholds. 否则,应收集数据并分析垃圾邮件报告,以确定是否需要进行调整。Otherwise, collect data and analyze the spam reporting to determine whether adjustments are required.