如果希望通过ADSI 强行删除,可以考虑如下方法:  

Open ADSI-Edit and got to configuration    
Navigate to this path:    
CN=Configuration,DC=DOMAIN,DC=LOCAL    
CN=Services    
CN=Microsoft Exchange    
CN=EXCHANGE_ORG    
CN=Administrative Groups    
CN=CN=Exchange Administrative Group (FYDIBOHF23SPDLT)    
CN=Databases    
CN=Public Folder Database XYZ

参考微软链接如下: