EWS自动发现共享收件箱

Question

我需要通过未分配电子邮件的服务帐户进入共享收件箱，但无法找到共享收件箱。请注意，服务帐户可以访问共享收件箱。

是否可以在没有现有电子邮件帐户的情况下访问Office 365共享收件箱？

ExchangeService service = new ExchangeService();
 service.Credentials = new WebCredentials("user@domain.com", "password");

//Individual User Email works
service.AutodiscoverUrl("user@email.com", RedirectionUrlValidationCallback);

//Shared Inbox - Doesn't Work
service.AutodiscoverUrl("sharedinbox@email.com",RedirectionUrlValidationCallback);

//The authenticating account is a service account without an email.