Forum Discussion

Brass Contributor

Sep 07, 2020

Warning - validation error

Hello, For a while now I have been getting a warning every time I open a distribution group or mail-enabled security group in the on-prem admin center. "The object removed has been corrupted...

Exchange Server

hybrid

ChristianBergstrom

Silver Contributor

Sep 07, 2020

Gly Hi, see if this can help https://www.admin-enclave.com/en/articles/exchange/253-resolved-how-to-fix-damaged-or-corrupt-health-mailbox-on-exchange-2016.html

Gly

Brass Contributor

Sep 07, 2020

ChristianBergstrom
Thank you for the suggestion.
I ran "Get-Mailbox -monitoring" but found no errors there.

ChristianBergstrom
Silver Contributor
Sep 07, 2020
Gly Hey, try this then 🙂

https://social.technet.microsoft.com/Forums/en-US/213afa53-0b61-4dd6-a807-a0262aa16474/the-access-control-entry-defines-the-objecttype-9b026da60d3c465c8bee5199d7165cba-that?forum=Exch2016Adm

What I want to highlight is this.

1. Run the IISReset on all Exchange server.
2. If reset IIS does work, reboot all Exchange server and check the result.
- Gly
  Brass Contributor
  Sep 07, 2020
  ChristianBergstrom
  I have tried this earlier, both iis reset and reboot. I have also tried recycling the "MSExchangeECPAppPool" as suggested in the post.
  - ChristianBergstrom
    Silver Contributor
    Sep 07, 2020
    Gly Btw, just saw this. Give it a try? https://www.azure365pro.com/exchange-control-panel-error-access-control-entry-not-resolved/