Office
A suite of Microsoft productivity software that supports common business tasks, including word processing, email, presentations, and data management and analysis.
1,301 questions
Security Alert :Information you exchange with this site cannot be viewd or changed by others
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(96, 47%, 19%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESD%3C/text%3E%3C/svg%3E)
surindersingh dhaliwal
81
Reputation points
So few of the users are getting this error while they open the outlook
Security Alert: information you exchange with this site cannot be viewed or changed by others.However, there is a problem with the site's security certificate
[
](https://i.stack.imgur.com/GNwJu.png)
The interesting thing is that this is started in the last 2 weeks and only for a few users. We are using the Hybrid env. Our exchange server is on-prem and it syncs with O365. We are using the Intune setup for all the users.
I don't know where i need to check this issue to resolve
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{count} votes
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(41.6, 80%, 14%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAL%3C/text%3E%3C/svg%3E)
Aholic Liang-MSFT 13,741 Reputation points Microsoft Vendor2023-06-12T05:43:52.44+00:00 In order to troubleshoot, I would like to confirm the following with you:
1. What is the version of Outlook client that has this problem?
2. Is the issuer and certificate name of the certificate in the prompt from the on-premises server, and has it expired?
3. Please check the Exchange server for old certificates that have expired.
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Aholic Liang-MSFT 13,741 Reputation points Microsoft Vendor
2023-06-19T02:15:12.8933333+00:00 Hi @ surindersingh dhaliwal, I am writing to check if you have tried the suggestions I mentioned before.
Would you please get back to me at your earliest convenience? Because your response is of great importance for the following trouble shooting. If you need further help, please provide more detailed information, so that we can give more appropriate suggestions.
I look forward to hearing from you.
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surindersingh dhaliwal 81 Reputation points
2023-06-27T17:40:11.5133333+00:00 Hi @Aholic Liang-MSFT ,
Sorry for the late reply.
So we are using the Hybrid Environment where our exchange server is on-prem and it syncs with the online exchange 365. We have assigned E5 license to everyone in our Org.
1. What is the version of Outlook client that has this problem?
-> Microsoft 365 MSO (Version 2305 Build 16.0.16501.20074)
2. Is the issuer and certificate name of the certificate in the prompt from the on-premises server, and has it expired?
-> in on-prem server we are using the different certificate like abcd.net and our main email address which we are giving to user like abc.com. Certificate error is showing the expiry certificate of abc.com.Also on-prem certificate is not expired
3, Checked all the certificate in on-prem server . not any single certificate is expired.
Issue is very strange and now increasing day by day to the random users.
Appreciate your help on this
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Aholic Liang-MSFT 13,741 Reputation points Microsoft Vendor
2023-06-29T09:52:00.8733333+00:00 Hi,
Please use EXRCA to test the autodiscover of user mailbox with this issue to see if there are any errors.
Also, do you have an old certificate issued to abc.com on your on-prem server?
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