Customization Recipient Limits in Microsoft 365

Customization Recipient Limits in Microsoft 365

 

The total number of recipients added to the To, CC and BCC lines of the message. By default, in the Microsoft 365 Multi-Tenant service, it is set to 500 for all mailboxes, and customers cannot change this setting before January 2020.

 

Some email admins want to increase the recipient limit for some mailboxes - for example, to support recurring mailing details such as recurring mail billing details.

 

while others want to reduce the recipient limit, to 50 or 20, such as rogue There is a way to better protect against rogue employees such as spam or hacked email accounts. 

 

Exchange Online Security Service, features to help detect misuse of an already rogue employee or hacked email account, can be customization by the recipient email recipient, another option that includes access protected Can be used as a strategy - strategy to help improve security. Your institution's currency.

 

Microsoft 365 tenant administrators can now customize recipient ranges from 1 to 1000. Admins can make changes setting through the Exchange Administration Center (EAC).

Customizing Recipient Limits via Remote PowerShell

 

Using remote PowerShell, an administrator can make the following updates to the recipient boundary:

 

Update a single mailbox

Update multiple mailboxes

Update default for new mailboxes created in future

Below are examples for how to do this.

 

Update a single mailbox

 

Set-Mailbox suraj@surajb.com -RecipientLimits 20

 

Update multiple mailboxes

 

(Get-Mailbox | where {$_.RecipientTypeDetails -ne "DiscoveryMailbox"}) | % {Set-Mailbox $_.Identity -RecipientLimits 10}

 

Update default for new mailboxes created in future (all plans)

 

Get-MailboxPlan | Set-MailboxPlan -RecipientLimits 50

Customizing the recipient limit for a single mailbox at the Classic Exchange Administration Center (EAC)

Administrators in Classic EAC can customize the recipient range from 1 to 1000 for individual mailboxes. The recipient limit setting can be found in Recipients> Mailboxes> Mailbox Features> Mail Flow> View Details.

Customizing recipient limits for multiple mailboxes in modern EAC

While Classic EAC only offers email entry for the ability to customize the approval limit for one mailbox at a time, modern EAC (currently in preview) offers the ability to share multiple mailboxes at a time.

 

At the time of this writing the modern EAC is still in progress and has not yet been automatically exposed to the tenant. However, once a tenant administrator has entered the Microsoft 365 portal, they can access the modern EAC, and edit the feature to limit the recipient. 

 

While customization Recipient Limits might not possess the exciting pizazz of a bright and shiny new major feature in Microsoft 365, giving tenant admins the ability to control this setting is just one example of how we’ll continue to work to give admins more “knobs and dials” that they can use to better control and protect their organization’s email.

😊😃Thank you for reading the blog, please do like, share & share your thoughts in the comment section.