Error: " You don't have permission to send to Distribution List"

Sophia 356 Reputation points
2021-10-29T19:41:40.193+00:00

Hello,

User A has full access to a ShareMailbox let's call it abc@xyz .com
User A wants to Send an Email to mail enabled distribution list (123@xyz .com) from: abc@xyz .com / sharedmailbox.

User A's actual email address is added to the delivery management of 123@ZHENGYANG XIA .com but User A still sees the error " you don't have permission to send to" when she tries to send email to that distribution list.

Things that I have done so far to fix the issue:

  • Downloaded the GAL
  • Recreated User A's email profile
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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Microsoft Exchange Hybrid Management
Microsoft Exchange Hybrid Management
Microsoft Exchange: Microsoft messaging and collaboration software.Hybrid Management: Organizing, handling, directing or controlling hybrid deployments.
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2 answers

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  1. Vasil Michev 92,596 Reputation points MVP
    2021-10-30T06:14:21.37+00:00

    Full access permissions doesn't give you any "send" rights, for that you will need to grant her Send As or Send on behalf of. Apart form the permissions, make sure she's actually trying to Send As the shared mailbox, the From address should be reflecting its address (and the "send using" value should match).

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  2. Joyce Shen - MSFT 16,636 Reputation points
    2021-11-01T02:46:11.777+00:00

    Hi @Safs-3080

    Agree with michev. Send As Allows the delegate to send messages as if they came directly from the mailbox or group. There's no indication that the message was sent by the delegate.

    You could refer to the official document to assign permission for userA

    In Exchange online: Manage permissions for recipients in Exchange Online

    Add-MailboxPermission -Identity "sharedmailbox" -User userA -AccessRights FullAccess -InheritanceType All  
    

    In on-prem Exchange: Manage permissions for recipients

    Add-ADPermission -Identity "sharedmaibox" -User userA -ExtendedRights "Send As"  
    

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