About email restrictions for your enterprise
When you restrict email notifications, enterprise members can only use an email address in a verified or approved domain to receive email notifications about activity in organizations owned by your enterprise.
注意****：批准非组织或企业所有的域的功能目前处于测试阶段，因此可能出现变动。
The domains can be inherited from the enterprise or configured for the specific organization. For more information, see "Verifying or approving a domain for your enterprise" and "限制组织的电子邮件通知."
If email restrictions are enabled for an enterprise, organization owners cannot disable email restrictions for any organization owned by the enterprise. If changes occur that result in an organization having no verified or approved domains, either inherited from an enterprise that owns the organization or for the specific organization, email restrictions will be disabled for the organization.
Restricting email notifications for your enterprise
Before you can restrict email notifications for your enterprise, you must verify or approve at least one domain for the enterprise.
Users will not be notified when you enable email restrictions. It is your responsibility to inform users that, in the future, they will only receive email notifications related to your enterprise if they've added an email address belonging to a verified or approved domain to their account settings.
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在 GitHub Enterprise Server 的右上角，单击你的个人资料照片，然后单击“企业设置”****。
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在企业帐户边栏中，单击“设置”。
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在“设置”下，单击“已验证和已批准的域”。
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在“通知首选项”下，选择“将电子邮件通知限制为仅已批准或已验证的域”。
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Click Save.
