Mailbox Syntax

Question

Hi All

I am using exchange 2016 Hybrid Environment. I want to create a shared mailbox and regular mailbox from PowerShell in exchange onprem and after a week i may migrate to exchange online.

is the below syntax correct to create shared mailbox and regular mailbox in Exchange Onprem.
Please correct me with the below syntaxes(I want to give SamAccountName since in some cases it can be more than 20 characters)

RegularMailbox  
New-Mailbox -Name "Test RegularMBX" -Firstname "Test" -LastName "RegularMBX" -UserPrincipalName "******@contoso.com" -SamAccountName "******@contoso.com" -OnPremisesOrganizationalUnit "OU=Regular,OU=Mailboxes,DC=contoso,DC=com"  
  
SharedMailbox  
New-Mailbox -Shared -Name "Test SharedMBX" -Firstname "Test" -LastName "SharedMBX" -UserPrincipalName "******@contoso.com" -SamAccountName "******@contoso.com" -OnPremisesOrganizationalUnit "OU=Shared,OU=Mailboxes,DC=contoso,DC=com"  

Answer 1

Hi @Rising Flight ,
For password parameters, please refer to the following syntax:

-Password (ConvertTo-SecureString -String 'P@ssw0rd' -AsPlainText -Force)  

In addition, please confirm that distinguishedName of specify organizational unit in ADUC. In my environment, it is displayed as "CN=XX, DC=contoso, DC=com".

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Answer 2

Hi @Rising Flight ,
According to my test, there is two error in original command line,please refer to the following command to create the user mailbox:

New-Mailbox -Name "Test RegularMBX" -Firstname "Test" -LastName "RegularMBX" -UserPrincipalName "******@contoso.com" -SamAccountName "Test.RegularMBX" -OrganizationalUnit "CN=Users,DC=contoso,DC=com"  

Similarly, you could follow the command below to create a shared mailbox and add access permissions:

New-Mailbox -Shared -Name " Test SharedMBX " -DisplayName " Test SharedMBX " -Alias “TestSharedMBX”  -SamAccountName "Test.RegularMBX" -OrganizationalUnit " CN=Users,DC=contoso,DC=com”  | Add-MailboxPermission -User “admin” -AccessRights FullAccess -InheritanceType All  

(Kindly note:You could open ADUC to see the distinguishedName for the organizational unit that you want to specify.)

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Answer 3

Thanks alot, when i put password in the syntax i am getting error

New-Mailbox -Name "Test RegularMBX" -Firstname "Test" -LastName "RegularMBX" -UserPrincipalName "Test.RegularMBX@Company portal .com" -SamAccountName "Test.RegularMBX" -Password 'P@ssw0rd' -OrganizationalUnit "OU=Regular,OU=Mailboxes,DC=contoso,DC=com"

Cannot process argument transformation on parameter 'Password'. Cannot convert the "P@ssw0rd" value of type "System.String" to type "System.Security.SecureString".