Thanks for posting in the Microsoft Community forum!
From the description above, I understand that your question is related to “Exchange Server”.
Since there are no engineers dedicated to this topic on this forum. To be able to get a quick and effective treatment of your problem, I recommend that you repost your question in the Q&A forum, where there will be a dedicated engineer to give you a professional and effective answer.
Here is the link to the Q&A forum.
Click the "Ask a Question" button in the top right corner to post your question and select relevant tags with “Exchange Server”.
I hope the above information is helpful.
Regards,
Jacen Wang