添加为 Office365 组成员的来宾帐户会订阅电子邮件，无论组的 AutoSubscribeNewMembers 设置如何
当我将来宾用户添加到启用 Teams 的 Office365 组时，无论该组的 AutoSubscribeNewMembers 设置为 False，他们都会被订阅。
我创建新团队的过程：
- 创建一个启用 Teams 的 Office365 组，仅添加所有者 - 而不是成员。
- 编辑组设置以允许来自外部发件人的电子邮件。
- “将群组对话和事件的副本发送给群组成员”永远不会被检查。
- 添加成员，包括内部成员和访客。
此时，来自无关第三方发件人的电子邮件将成功登陆组邮箱（如预期），不会转发到内部组成员（如预期），而是会转发到访客组成员（这就是问题所在） ）。
Powershell Get-UnifiedGroup 确认 AutoSubscribeNewMembers 为 False，AlwaysSubscribeMembersToCalendarEvents 为 True，SubscriptionEnabled 为 True - 我相信这是当您未选中上述步骤 3 中的“发送副本”框时的默认设置。
但是 - 当我将访客帐户添加为组成员时，Get-UnifiedGroupLinks 确认他们也是订阅者。我可以将它们作为订阅者删除，但如果 AutoSubscribeNewMembers 设置为 False 得到尊重，我似乎不必这样做。
是否有其他设置可以取代组的 AutoSubscribeNewMembers 设置？该设置是否仅适用于内部会员而不适用于访客？
When I add guest users to Teams-enabled Office365 Groups, they're getting subscribed regardless of the group having AutoSubscribeNewMembers being set to False.
My process for creating a new Team:
- Create an Office365 Group that is Teams-enabled, adding only Owners - not members.
- Edit the group settings to allow email from external senders.
- 'Send copies of group conversation and events to group members' NEVER gets checked.
- Add members, both internal and guest.
At this point, an email from an unrelated third-party sender will land in the group mailbox successfully (as expected), not get forwarded to Internal group members (as expected), but will get forwarded to Guest group members (this is the problem).
Powershell Get-UnifiedGroup confirms that AutoSubscribeNewMembers is False, AlwaysSubscribeMembersToCalendarEvents is True, and SubscriptionEnabled is True - which I believe is the default setting when you don't check the 'Send copies' box from step 3 above.
However - The moment I add a guest account as a member to the group, Get-UnifiedGroupLinks confirms that they're also a subscriber. I can remove them as a subscriber, but this seems like I shouldn't have to if AutoSubscribeNewMembers being set to False was being respected.
Is there another setting somewhere that could be superceding the group's AutoSubscribeNewMembers setting? Does that setting only apply to Internal members and not Guests?
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微软支持证实这是“预期”行为。
始终subscrecemberstocalendarevents ， autoSubScribeNewmembers ，甚至仅适用于内部用户帐户，而不是访客用户帐户。不管小组的配置如何，访客用户始终订阅组。
值得注意的是，可以通过 get-unifiedgrouplinks powerShell cmdlet审查和手动删除来宾帐户订阅（而且我敢肯定有图形API解决方案），但是截至撰写本文时，Office3665中没有任何地方admin UI要查看或管理这些链接，每次添加访客用户一个组时，都必须手动浏览它们。
Microsoft support confirmed this to be the 'expected' behavior.
The AlwaysSubscribeMembersToCalendarEvents, AutoSubscribeNewmembers, and even SubscriptionEnabled attributes only apply to internal user accounts, not guest user accounts. Guest users are always subscribed to Groups regardless of the group's configuration.
It's worth noting that Guest account subscriptions can be reviewed and manually removed via Get-UnifiedGroupLinks powershell cmdlet (and I'm sure there's a Graph API solution), but as of this writing there is nowhere in the Office365 Admin UI to view or manage these links, and they must be manually currated each time a guest user is added a group.