Sending email to mail enabled Public Folder - 550 5.7.13 STOREDRV.AuthenticationRequiredForPublicFolder

Question

_{Tuesday, July 17, 2018 8:14 PM}

Trying to send email internally to mail enabled Public Folder, getting error below:

[email protected]
server.com
Remote Server returned '550 5.7.13 STOREDRV.AuthenticationRequiredForPublicFolder; Anonymous users are not permitted to add contents to mail enabled public folder, authenticated required [Stage: CreateMessage]'

Anonymous user is configured with "Create Items" permissions. Email is flowing fine form external sender.

Any thoughts?

Regards, Mindaugas Laucius

All replies (9)

_{Wednesday, July 18, 2018 7:45 AM}

Hi Laucius,

How did you allow anonymous users to send email to a mail-enabled public folder? 

Please run the following command to check the permission on the mail-enabled public folder:

Get-PublicFolderClientPermission "\PublicFolderName"

If permission is not correct, try to run the following command to set the permission again and check the result:

Add-PublicFolderClientPermission "\PublicFolderName" -AccessRights CreateItems -User Anonymous

Best Regards,
Niko Cheng
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_{Wednesday, July 18, 2018 11:58 AM}

I did set permissions exactly as you said:

FolderName           User                 AccessRights
                           
info                 Default              {None}
info                 Anonymous            {CreateItems}

I tried to re-create it. Still doesn't work.

Regards, Mindaugas Laucius

_{Friday, July 20, 2018 9:30 AM}

Hi Laucius,

Have you cleared the check box for "Require that all senders are authenticated" in public folder? As below:

Best Regards,
Niko Cheng
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_{Friday, July 20, 2018 12:07 PM}

Yes. The email flow is working if sender is outside of org.

Regards, Mindaugas Laucius

_{Monday, July 23, 2018 2:51 AM}

Hi Laucius,

Strange issue.

If you create a new mail-enabled public folder in the same public folder mailbox, and assign the "Create Items" permission to anonymous, is there the same issue ? If yes, I'd recommend you move the public folder mailbox to another database and check if any helps.

If no, please also run the following command and compare with the new-created public folder and check if any difference:

Get-MailPublicFolder info |fl name, require*,reject*,accept*

Best Regards,
Niko Cheng
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_{Monday, July 23, 2018 2:54 AM}

yes, have issue with multiple public folders in multiple public folder mailboxes located in multiple databases..

example:

Name                                   : info 84790178
RequireSenderAuthenticationEnabled     : False
RejectMessagesFrom                     : {}
RejectMessagesFromDLMembers            : {}
RejectMessagesFromSendersOrMembers     : {}
AcceptMessagesOnlyFrom                 : {}
AcceptMessagesOnlyFromDLMembers        : {}
AcceptMessagesOnlyFromSendersOrMembers : {}

Regards, Mindaugas Laucius

_{Wednesday, July 25, 2018 10:13 AM}

Hi Laucius,

When did you encounter this issue? did it occur suddenly ? Please check if there is any related log in event viewer.

Moreover, if you create a new public folder mailbox, and create a new mail-enabled public folder in this mailbox, is there the same issue ?

Best Regards,
Niko Cheng
Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact [email protected].

Click here to learn more. Visit the dedicated forum to share, explore and talk to experts about Microsoft Teams.

_{Wednesday, July 25, 2018 6:47 PM}

The issue was identified recently.. I think it was working before.. I have 20 000 PFs.. Only ~300 mail enabled.. 

Regards, Mindaugas Laucius

_{Tuesday, February 4, 2020 10:44 AM}

Brilliant, this has worked for me!  I've had our email company and Microsoft on this and none have suggested this so far.  Thanks!