Exchange administrator mailbox

fsdg 966 Reputation points
2022-06-13T08:58:10.153+00:00

Hello,

I have mailbox for builtin administrator account.
AD admin ask me to delete mailbox for administrator account for better security.
AFAIK builtin administrator account mailbox is for NDR,holding email based on filtering policies,mail errors...
Is it ok to delete administrator mailbox?
Any advice what to do?
Thank you

Exchange Server Management
Exchange Server Management
Exchange Server: A family of Microsoft client/server messaging and collaboration software.Management: The act or process of organizing, handling, directing or controlling something.
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  1. Andy David - MVP 141.6K Reputation points MVP
    2022-06-13T12:55:55.633+00:00

    The administrator account show NOT be mailbox-enabled, so yes ok to disable it.
    ITs not used for NDRs or anything by default.

    The postmaster@yourdomain.com email address can be associated with any shared mailbox. that is different from the built-in administrator account for the windows domain.

    NDRs are generated by the system, not the administrator ;
    https://learn.microsoft.com/en-us/exchange/recipients/recipients?view=exchserver-2019#microsoft-exchange-recipient

    1 person found this answer helpful.

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