Enable Plus Email Addressing in Exchange Online
Office 365 (Exchange) Tuesday, 15 December 2020 by paul

Exchange Online now support Plus emailing address like GMail has for many years. So if your email address is [email protected] then you can also use the email address [email protected] to create unique email addresses for mailing list etc. It is not currently enabled by default so needs to be enabled using PowerShell. The following script will do so:

# Enable Plus Emailing in Exchange Online

# Check the ExchangeOnlineManagement module is installed and >= v2.0.4
Import-Module ExchangeOnlineManagement; Get-Module ExchangeOnlineManagement

# Install module if required
#Install-Module -Name ExchangeOnlineManagement -RequiredVersion 2.0.4-Preview2 -AllowPrerelease

# Update module if required
#Update-Module -Name ExchangeOnlineManagement

# Connect to Exchange PowerShell
Connect-ExchangeOnline -UserPrincipalName [email protected]

# Change organisational config to allow plus emailing. It is off by default.
Set-OrganizationConfig -AllowPlusAddressInRecipients $true

Currently only available for mailboxes but will be added to distribution groups soon.

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