Loại trừ User khỏi Dynamic Distribution List bằng CustomAttribute15

## Loại trừ User khỏi Dynamic Distribution List bằng CustomAttribute15

### 1. Kết nối Exchange Online

```powershell

Install-Module ExchangeOnlineManagement -Scope CurrentUser

Import-Module ExchangeOnlineManagement

Connect-ExchangeOnline

```

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Copy group từ user A qua User B

$SourceUser = "user.source"

$TargetUser = "user.target"

Get-ADPrincipalGroupMembership $SourceUser |

Where-Object {$_.Name -ne "Domain Users"} |

ForEach-Object {

    Add-ADGroupMember -Identity $_.Name -Members $TargetUser

}