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55025 – Tenant Customizable Recipient Limits (archived)

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check before: 2019-11-30

Product:

Exchange, Microsoft 365 admin center

Platform:

Online, World tenant

Status:

Launched

Change type:

Links:

Details:

In Exchange Online a mailbox user is allowed to send to a maximum of 500 recipients per message. This default value currently can’t be changed by the tenant admin. Yet, many admins would like to raise this limit on at least a few mailboxes (for monthly newsletters for example). Others want to significantly lower it (to, say, 50 or some such) for most or all mailboxes in their organization, as part of a perceived defense-in-depth strategy to reduce the potential impact should a hacker compromise a user account and start blasting out spam, or a disgruntled employee tries to air their grievances company-wide. With the upcoming customizable recipient limits, you’ll now be able to customize this setting between 1 and 1000, for a single mailbox, multiple mailboxes, and for the default setting for new mailboxes that you create in the future. Single and bulk edit will be available in the Exchange Admin Center UI, while customizing the default setting for new mailboxes can be done via Remote PowerShell.

Change Category:
XXXXXXX ...

Scope:
XXXXXXX ...

Release Phase:
General Availability

Created:
2019-09-07

updated:
2020-07-03

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Last updated 2 years ago

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