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Log a new service request from Support in O365 Admin Center. O365 support will be able to provide the certificate details.
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Log a new service request from Support in O365 Admin Center. O365 support will be able to provide the certificate details.

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If they need this information in order to enforce mutual TLS with O365, you will find the relevant details in this article: <a href="https://support.office.com/en-us/article/how-exchange-online-uses-tls-to-secure-email-connections-in-office-365-4cde0cda-3430-4dc0-b489-f2c0736c929f" rel="ugc">https://support.office.com/en-us/article/how-exchange-online-uses-tls-to-secure-email-connections-in-office-365-4cde0cda-3430-4dc0-b489-f2c0736c929f</a>
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If they need this information in order to enforce mutual TLS with O365, you will find the relevant details in this article: https://support.office.com/en-us/article/how-exchange-online-uses-tls-to-secure-email-connections-in-office-365-4cde0cda-3430-4dc0-b489-f2c0736c929f [https://support.office.com/en-us/article/how-exchange-online-uses-tls-to-secure-email-connections-in-office-365-4cde0cda-3430-4dc0-b489-f2c0736c929f]

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Jem Lian, all ready tried that. &nbsp;Their response was to read the documents, mentioned by Adam Brown<br />
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I've included that document in the response to our business partner, thanks for everyone's help
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Jem Lian, all ready tried that.  Their response was to read the documents, mentioned by Adam Brown

I've included that document in the response to our business partner, thanks for everyone's help

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We use Office 365 exchange, one of our partners is requesting certificate info like,<br />
Who issued the certificate being used<br />
What cipher is being used<br />
What encryption strength is being used by the server<br />
<br />
Where do I find that info?<br />
<br />
I've gone around in circles looking at articles from Microsoft and not found the answer. &nbsp;Where do I find that?<br />
<br />
Appreciate the help
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We use Office 365 exchange, one of our partners is requesting certificate info like,
Who issued the certificate being used
What cipher is being used
What encryption strength is being used by the server

Where do I find that info?

I've gone around in circles looking at articles from Microsoft and not found the answer.  Where do I find that?

Appreciate the help

Where do I find the Certificate info for Office 365 that I am using

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

Office 365 is a group of software plus services subscriptions that provides productivity software and related services to its subscribers. Office 365 allows the use of Microsoft Office apps on Windows and OS X, provides storage space on Microsoft's cloud storage service OneDrive, and grants 60 Skype minutes per month. Office 365 includes e-mail and social networking services through hosted versions of Exchange Server, Skype for Business Server, SharePoint and Office Online, integration with Yammer, as well as access to the Office software. All of Office 365's components can be managed and configured through an online portal; users can be added manually, imported from a CSV file, or Office 365 can be set up for single sign-on with a local Active Directory using Active Directory Federation Services.