Exchange Server Recipient Type Values for MSExchRecipientTypeDetails Active Directory Attribute

There are many times where I need to get the type of an exchange recipient but all I have is Active Directory access and not Exchange. A typical scenario is during a migration where you may only have AD access for MIM to sync the directories.

How are we going to get the exchange recipient with only AD access? Using the MSExchRecipientTypeDetails Active Directory attribute. Below is the table with the possible values for that attribute.

Object Type

RecipientTypeDetails

Value Name

User Mailbox

1

UserMailbox

Linked Mailbox

2

LinkedMailbox

Shared Mailbox

4

SharedMailbox

Legacy Mailbox

8

LegacyMailbox

Room Mailbox

16

RoomMailbox

Equipment Mailbox

32

EquipmentMailbox

Mail Contact

64

MailContact

Mail User

128

MailUser

Mail-Enabled Universal Distribution Group

256

MailUniversalDistributionGroup

Mail-Enabled Non-Universal Distribution Group

512

MailNonUniversalGroup

Mail-Enabled Universal Security Group

1024

MailUniversalSecurityGroup

Dynamic Distribution Group

2048

DynamicDistributionGroup

Public Folder

4096

Public Folder

System Attendant Mailbox

8192

SystemAttendantMailbox

System Mailbox

16384

SystemMailbox

Cross-Forest Mail Contact

32768

MailForestContact

User

65536

User

Contact

131072

Contact

Universal Distribution Group

262144

UniversalDistributionGroup

Universal Security Group

524288

UniversalSecurityGroup
Non-Universal Group

1048576

NonUniversalGroup

Disabled User

2097152

DisabledUser

Microsoft Exchange

4194304

MicrosoftExchange

Arbitration Mailbox

8388608

ArbitrationMailbox

Mailbox Plan

16777216

MailboxPlan

Linked User

33554432

LinkedUser

Room List

268435456

RoomList

Discovery Mailbox

536870912

DiscoveryMailbox

Role Group

1073741824

RoleGroup

Remote Mailbox

2147483648

RemoteMailbox

Team Mailbox

137438953472

TeamMailbox

In case you have to connect to a remote Active Directory, you may find the Find-LDAPObject function from the S.DS.P module extremely helpful since it will allow you to make any kind of queries.

PS: The table above is a copy from this msexchange.org article.

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