DelegateSentItemsStyle get's ignored after migation to EXO

mcdy 0

Hey folks,

as long as we used Exchange on Premise and Office 365, DelegateSentItemsStyle = 1 worked great, even now I have no problems myself, but some users do.

Although the value is still set, the emails are stored in the personal ‘Sent Items’ folder since the migration to EXO.

I am aware of the option with the command to the mailbox, but we prefer to have the email only in one.

Any idea why this no longer works?

As far as I can see it still should.

Source: https://learn.microsoft.com/en-us/exchange/troubleshoot/user-and-shared-mailboxes/sent-mail-is-not-saved#method-2-set-the-delegatesentitemsstyle-registry-value-on-the-outlook-client

Thx!

Bruce Jing-MSFT 4,190 Reputation points Microsoft Vendor

2024-09-16T06:05:44.5066667+00:00

Hello, @mcdy

It's been a long time since I've heard from you, have you solved your problem yet? Did my previous reply help you？ If it was useful, you can mark it as an answer. Thank you for your understanding and support.
Bruce Jing-MSFT 4,190 Reputation points Microsoft Vendor

2024-09-18T01:18:45.86+00:00

Hello, @mcdy

It's been a long time since I've heard from you, have you solved your problem yet? Did my previous reply help you？ If it was useful, you can mark it as an answer. Thank you for your understanding and support.

1 answer

Bruce Jing-MSFT 4,190 Reputation points Microsoft Vendor

2024-09-09T07:29:35.2666667+00:00

Hi，@mcdy

Thanks for posting your question in the Microsoft Q&A forum.

Based on your description, I'd like to confirm the issue with you.

After you set DelegateSentItemsStyle = 1, some users' emails are saved to both shared and “Sent Items” mailboxes?

If this is the problem, Microsoft has provided an official solution, please refer to this link:https://learn.microsoft.com/en-us/outlook/troubleshoot/email-management/email-remains-in-the-outbox-when-you-use-the-deleg?source=recommendations

If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
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mcdy 0 Reputation points

2024-09-10T11:25:02.6466667+00:00

Hello,

unfortunately, this is not the case.
Before the migration to EXO, it worked perfectly with the RegKey.
Now the e- mails end up in the ‘sent items’ of the persons instead of the shared mailbox. (for specific shared mailboxes, not all as far as I can see)

But only here.
Both MessageCopyForSentAsEnabled and MessageCopyForSendOnBehalfEnabled are set to $false.

Because we don't want to have the emails in both ‘sent items’.

Thank you!

Bruce Jing-MSFT 4,190 Reputation points Microsoft Vendor

2024-09-11T02:54:01.5066667+00:00

Hi，@mcdy

I'm glad to hear back from you.

“Email remains in the Outbox when you use the DelegateSentItemsStyle registry value” Have you tried the linked method?

If you want the sent emails to be saved in the shared mailbox's Sent Items folder, you should set these attributes to $true. You can do this using the Exchange Management Shell (EMS) with the following commands:

For Sent As:

Set-Mailbox <SharedMailboxIdentity> -MessageCopyForSentAsEnabled $true

For Send On Behalf:

Set-Mailbox <SharedMailboxIdentity> -MessageCopyForSendOnBehalfEnabled $true
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