This is a crib sheet I use to lookup the actual type of a mailbox or user based on the AD attributes. For example often shared mailboxes turn out to actually be user mailboxes with a disabled AD account. This looks the same, but will require a license, so you can use this to identify mailboxes which need to be converted from user to shared mailboxes before migration to Exchange Online.
Note: see our post to fix shared mailboxes which were created as users here: Exchange hybrid – fixing shared mailboxes that were created as user mailboxes – Cloudrun
msExchRecipientDisplayType
|
Type |
AD: msExchRecipientDisplayType O365: Recipient Display Type CloudExchangeRecipientDisplayType |
AD:msExchRecipientTypeDetails O365: RecipientTypeDetails |
|
MailboxUser / UserMailbox |
0 |
1 |
|
Linked Mailbox |
1073741824 |
2 |
|
Shared Mailbox |
1073741824 |
4 |
|
Exchange 2003 Legacy |
|
8 |
|
MailUser (AD-User) |
6 |
Not set |
|
Room |
7 |
16 |
|
Equipment |
8 |
32 |
|
Mail Contact |
6 |
64 |
|
Mail User |
|
128 |
|
Mail universal Distribution Group |
1 |
256 |
|
Mail non universal Group |
|
512 |
|
Mail universal Security Group |
1073741833 |
1024 |
|
Dynamic Distribution Group |
3 |
2048 |
|
Mail-Enabled Public Folder |
2 |
4096 |
|
System Attendant Mailbox |
|
8192 |
|
Systemmailbox/Mailbox Database Mailbox |
|
16384 |
|
Cross Forest Mail Contact |
|
32768 |
|
User |
|
65536 |
|
Contact |
|
131072 |
|
Universal Distribution Group |
|
262144 |
|
Universal Security Group |
|
524288 |
|
Non-Universal Group |
|
1048576 |
|
Disabled User |
|
2097152 |
|
Microsoft Exchange |
|
4194304 |
|
Arbitration Mailbox |
|
8388608 |
|
MailboxPlan |
|
16777216 |
|
LinkedUser |
|
33554432 |
|
RoomList |
|
268435456 |
|
DiscoverySearchMailbox |
|
536870912 |
|
Organization |
4 |
|
|
PrivateDistributionGroup |
5 |
|
|
SystemMailbox oder FederationMailbox |
10 |
|
|
Role Group |
|
1073741824 |
|
RemoteUserMailbox |
-2147483642 -1073741818 (with Hybrid Delegate) |
2147483648 |
|
Computer |
|
4294967296 |
|
RemoteRoomMailbox |
|
8589934592 |
|
RemoteEquipmentMailbox |
|
17179869184 |
|
RemoteSharedMailbox |
|
34359738368 |
|
PublicFoldermailbox |
|
68719476736 |
|
Team Mailbox |
|
137438953472 |
|
RemoteTeamMailbox |
|
274877906944 |
|
Monitoring Mailbox |
|
549755813888 |
|
Group Mailbox |
|
1099511627776 |
|
LinkedRoomMailbox |
|
2199023255552 |
|
AuditLogMailbox |
|
4398046511104 |
|
RemoteGroupMailbox |
|
8796093022208 |
|
SchedulingMailbox |
|
17592186044416 |
|
GuestMailBox |
|
35184372088832 |
|
AuxAuditLogMailbox |
|
70368744177664 |
|
SupervisoryReview |
|
140737488355328 |
msExchRecipientTypeDetails
|
Object Type |
Decimal Value |
|
User Mailbox |
1 |
|
Linked Mailbox |
2 |
|
Shared Mailbox |
4 |
|
Legacy Mailbox |
8 |
|
Room Mailbox |
16 |
|
Equipment Mailbox |
32 |
|
Mail Contact |
64 |
|
Mail User |
128 |
|
Mail-Enabled Universal Distribution Group |
256 |
|
Mail-Enabled Non-Universal Distribution Group |
512 |
|
Mail-Enabled Universal Security Group |
1024 |
|
Dynamic Distribution Group |
2048 |
|
Public Folder |
4096 |
|
System Attendant Mailbox |
8192 |
|
System Mailbox |
16384 |
|
Cross-Forest Mail Contact |
32768 |
|
User |
65536 |
|
Contact |
131072 |
|
Universal Distribution Group |
262144 |
|
Universal Security Group |
524288 |
|
Non-Universal Group |
1048576 |
|
Disabled User |
2097152 |
|
Microsoft Exchange |
4194304 |
|
Arbitration Mailbox |
8388608 |
|
Mailbox Plan |
16777216 |
|
Linked User |
33554432 |
|
Room List |
268435456 |
|
Discovery Mailbox |
536870912 |
|
Role Group |
1073741824 |
|
Remote Mailbox |
2147483648 |
|
RemoteRoomMailbox |
8589934592 |
|
RemoteEquipmentMailbox |
17179869184 |
|
RemoteSharedMailbox |
34359738368 |
|
Team Mailbox |
137438953472 |
msExchRemoteRecipientType
|
Value Name |
Decimal Value |
|
ProvisionedMailbox (Cloud MBX) |
1 |
|
ProvisionedArchive (Cloud Archive) |
2 |
|
ProvisionedMailbox, ProvisionedArchive (Cloud MBX & Cloud Archive) |
3 |
|
Migrated |
4 |
|
Migrated, ProvisionedArchive (Migrated MBX & Cloud Archive) |
6 |
|
DeprovisionMailbox |
8 |
|
DeprovisionArchive |
16 |
|
DeprovisionArchive, Migrated |
20 |
|
RoomMailbox |
32 |
|
Migrated, RoomMailbox |
36 |
|
EquipmentMailbox |
64 |
|
Migrated, EquipmentMailbox |
68 |
|
SharedMailbox |
96 |
|
Migrated, SharedMailbox |
100 |
