O365: Exchange and AD: How msExchRecipientDisplayType and msExchangeRecipientTypeDetails Relate to Your On-Premises

Syntax : Get-ADUser -filter * -Properties * | fl *msExchRecipientDisplayType*       Get-ADUser -identity <LANID> -Properties * | fl *msExchRecipientDisplayType*

Often, in O365, there's a reference field we use to specify what a recipient type is, as far as on-premises AD/Exchange is concerned. If you weren't already aware, this is how the attributes relate:

Recipient Display Type = msExchRecipientDisplayType
Recipient Type Details = msExchRecipientTypeDetails

Here is how the Recipient Display Type Breaks down:

Display Type	Value
MailboxUser	0
DistrbutionGroup	1
PublicFolder	2
DynamicDistributionGroup	3
Organization	4
PrivateDistributionList	5
RemoteMailUser	6
ConferenceRoomMailbox	7
EquipmentMailbox	8
ACLableMailboxUser	1073741824
SecurityDistributionGroup	1043741833
SyncedMailboxUser	-2147483642
SyncedUDGasUDG	-2147483391
SyncedUDGasContact	-2147483386
SyncedPublicFolder	-2147483130
SyncedDynamicDistributionGroup	-2147482874
SyncedRemoteMailUser	-2147482106
SyncedConferenceRoomMailbox	-2147481850
SyncedEquipmentMailbox	-2147481594
SyncedUSGasUDG	-2147481343
SyncedUSGasContact	-2147481338
ACLableSyncedMailboxUser	-1073741818
ACLableSyncedRemoteMailUser	-1073740282
ACLableSyncedUSGasContact	-1073739514
SyncedUSGasUSG	-1073739511

Here is how the Recipient Type Details breaks down:

Object Type	RecipientTypeDetails (Decimal Value)	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

Here is how the Remote Recipient Types break-down (thanks to cstep for this piece):

Decimal Value	Hex Value	Value Name
1	0x1	ProvisionedMailbox (Cloud MBX)
2	0x2	ProvisionedArchive (Cloud Archive)
3	0x3	ProvisionedMailbox, ProvisionedArchive (Cloud MBX & Cloud Archive)
4	0x4	Migrated
6	0x6	Migrated, ProvisionedArchive (Migrated MBX & Cloud Archive)
8	0x8	DeprovisionMailbox
16	0x10	DeprovisionArchive
20	0x14	DeprovisionArchive, Migrated
32	0x20	RoomMailbox
36	0x24	Migrated, RoomMailbox
64	0x40	EquipmentMailbox
68	0x44	Migrated, EquipmentMailbox
96	0x60	SharedMailbox
100	0x64	Migrated, SharedMailbox