msExchRecipientTypeDetails

Object Type

RecipientTypeDetails (Decimal Value)

User Mailbox

1

Linked Mailbox

2

Shared Mailbox

4

Legacy Mailbox

8

Room Mailbox

16

Equipment Mailbox

32

Mail Contact

64

Mail-enabled 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

Mail-enabled Public Folder

4096

System Attendant Mailbox

8192

Mailbox Database Mailbox

16384

Across-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

Remote User Mailbox                                                                   2147483648
Remote Room Mailbox                                                                 8589934592
Remote Equipment Mailbox                                                          17179869184
Remote Shared Mailbox                                                               34359738368                 

I constantly find myself needing this table, and I can’t ever remember where on TechNet to find it, so since this is MY blog 🙂 I’m putting a copy here.

Credit where credit is due, the original lives here : http://blogs.technet.com/b/benw/archive/2007/04/05/exchange-2007-and-recipient-type-details.aspx

Reader Comments

  1. Updated to include all the remote mailbox (user, room, shared, equipment) types as well

  2. Can I use 8589934592 to trick Exchange to believe that a object is a room in another forest ?

    Are there any other attributes I need to set ?

  3. Interesting Info that is maybe not that obvious:
    Can be a reason why a AADConnect AD-User is not synced to Office 365 if the value is “2”, “linked mailbox”

  4. Warning! The value for Remote Equipment Mailbox is incorrect (17173869184). It should be 17179869184.

  5. I’m not sure if yours is a typo, but I just spent a while troubleshooting with setting these attributes along with msExchRemoteRecipientType in order to have AAD Connect synchronize my user accounts to Azure AD / Office 365 and my equipment mailbox account wouldn’t sync to Azure AD. Eventually I created an equipment mailbox on-premises then migrated it and check its value. It was very close to your value for remote equipment mailbox except the 5th character is 9 instead o 3 – 17179869184. My on-premises Exchange is 2013 CU15. Seems like these long recipient type numbers are different on everyone’s blog, maybe they are ever changing with Microsoft’s updates to Exchange.

  6. I believe remote equipment mailbox should be 17179869184 instead of 17173869184

Comments are closed.