Event ID - 1287

Event Id1287
DescriptionUnable to connect an LDAP SSL client due to an internal error. Verify that the SSL credentials are properly set up on this server.
Event InformationAccording to Microsoft:
Explanation :

A Secure Sockets Layer (SSL) certificate is probably not installed. SSL is a protocol that provides secure data communication using data encryption and decryption. Lightweight Directory Access Protocol (LDAP) is an Internet protocol that allows access to directory information. Clients with access can use LDAP to browse, read, and search directory listings. LDAP requires a TCP/IP connection.
User Action :
Install an SSL certificate on the server. For more information, see the Exchange online documentation.
Reference LinksEvent id 1287 from source MSExchangeSRS

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