Note SMTP addresses have to be unique and cannot exist two times in the same environment. Microsoft Exchange Server is supposed to prevent duplications. However, users receive their proxy addresses through Microsoft Managed Services Service Provisioning Provider (MMSSPP). In this case, address values are hard-coded directly into Active Directory Domain Services (AD DS), and the user may have a duplicate SMTP address if duplications exist in the user's Active Directory forest.
A simple example of the cmdlet is as follows:
Get-Recipient User@domain.comSometimes, this issue occurs because a bad entry is located in a user's proxy address list.
For example, correct entries of the proxy address resemble the following:
You can check proxy addresses on the mailbox by using Active Directory Service Interfaces (ADSI) Editor. To do this, load a query for the user's Active Directory account, and then check the user's proxy address list.
An incorrect value resembles the following. As you can see, the first proxy address is missing a protocol identifier.
If an address that doesn't have a protocol prefix exists in the managed environment but doesn't exist in the source AD DS, check the msRTC-PrimarySIPAddress attribute in the source environment. For Lync-enabled customers, this attribute should have an "SIP:" protocol prefix. If the msRTC-PrimarySIPAddressattribute doesn't have an "SIP:" protocol prefix, the scenario that was mentioned earlier will occur when the account is synced to the managed environment.
Id. de artículo: 2786433 - Última revisión: 20 mar. 2014 - Revisión: 1