Office 365, Email, Creating a Resource or Group Mailbox

These are the options for resource (e.g. non-person) mailboxes, shared mailboxes and calendars, equipment and room accounts, and unified groups.

To create or request a resource mailbox:

  1. Decide which type of resource mailbox you want. The four types are as follows:
  • Unified Group: Anyone can create using Outlook on the web, shared mailbox and calendar. Great for collaboration.

Unified groups can be made from Outlook on the web, or within a number of other Office 365 features. Unified groups get a shared mailbox and calendar, and ownership is controlled by the creator of the group and anyone they delegate ownership to. To learn more about Unified Groups. 

  • User Mailbox: Operates as a normal mailbox. Good for shared access.
  • Room Mailbox: has additional booking features available through Outlook on the web and is listed as type "Room" in the Global Address List.
  • Equipment Mailbox: has additional booking features available through Outlook on the web and is listed as type "Equipment" in the Global Address List.

Note: Options 2 - 4 require IT Pros to follow these steps to create a UOFI Active Directory resource account and mailbox. If you need more information regarding Room / Equipment mailboxes see Email, Exchange, Understanding Room and Equipment (Resource) Mailboxes in Exchange    

  1. Create an object in your UOFI OU that will be associated with your resource. Name this object in accordance with the following rules:
  • An object name must be nine characters or longer and/or contain a hyphen so it does not conflict with a NetID.
  • An object name may not have spaces. (Hyphens are a recommended substitute for spaces.)
  • An object name SHOULD adhere to the format of dept-building-resource or dept-resource.
  • Examples include: TechSvc-DCL-L532, TechSvc-dcl-l410projector, etc.
  1. Create a Universal Security group or two in your OU that will contain user objects and be granted full mailbox access and/or send as rights over the resource object. For example, if your resource object is named tech-svc-dcl-l410, your group should be named tech-svc-dcl-l410-FAtech-svc-dcl-l410-SA, or similar. The FA represents fullaccess and SA represents sendas.
  2. Populate the group with the user objects you wish to have full control and send as rights over this object.
  3. Send an email to and request that your resource account be mailbox-enabled and that the group(s) that you have created be given full control/send as rights to that mailbox. Please be sure to specify the type of resource (user, room, equipment, or undergrad) that you would like created. Please note that all resource accounts have email addresses unless otherwise requested. If you want an alias you need to request it via . Once the alias has been approved and created by the Identity team Exchange can update the primary SMTP to have a proper address. The IT Pro will want to make sure the Illinois alias points to the address in the Electronic Directory.

See Also:

Keywords:office 365 email group resource account mailbox conference room equipment shared calendar exchange online   Doc ID:81952
Owner:Office 3.Group:University of Illinois Technology Services
Created:2018-04-28 17:12 CSTUpdated:2021-05-13 11:58 CST
Sites:University of Illinois Technology Services
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