Difference between shared mailbox and user mailbox having a license

Carlos Lino 6

Hello guys,

Can someone explain to me the difference of:

To have a shared mailbox with a EOP2 instead of convert that shared mailbox to user mailbox and set the EOP2 license?

I know that EOP2 gives you more storage but would it make sense to have the account into shared mailbox with a license knowing that you can keep it as as user mailbox with the same license and also grant delegation access?? User's image

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Vasil Michev 106.2K Reputation points MVP

2024-03-17T02:02:14.7366667+00:00

Shared mailboxes cannot be logged on to directly, you have to delegate access. With regards to all the other Exchange Online features, there is no difference. Outside of Exchange Online, there might be some other differences, such as them not appearing in some reports or UI controls (usually having to use PowerShell instead). So you might as well just convert the mailbox to user one indeed.
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JimmyYang-MSFT 53,136 Reputation points Microsoft Vendor

2024-03-18T09:46:27.1366667+00:00

@Carlos Lino

Just checking in to see if above information was helpful. If you have any further updates on this issue, please feel free to post back.

Carlos Lino 6 Reputation points

2024-03-20T20:33:36.95+00:00

@Vasil Michev thank you for your input. According what you said about "Shared mailboxes cannot be logged on to directly"....

...If you assign a license to a sharedmailbox, it will have a direct login. So, I go back to the same scenario..

SharedMailbox with a license

UserMailbox with a license

Both cases above will have the same behavior and features...so both will end up being the same at same point, right?

JimmyYang-MSFT 53,136 Reputation points Microsoft Vendor

2024-04-02T09:54:09.47+00:00

There are some differences between a shared mailbox and a user mailbox with a license.

Shared mailboxes have some limitations, such as a smaller storage capacity. On the other hand, a user mailbox with a license is a mailbox that is assigned to a specific user and requires a license to use. It has a larger storage capacity. The user can also access additional features, such as the ability to create and manage rules, set up automatic replies, and access advanced search options. So, while both types of mailboxes can be used to send and receive email messages, they have different features and limitations.
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Difference between shared mailbox and user mailbox having a license

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