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the target principal name is incorrect
Question asked by weejian lau - 12/19/2019 at 9:04 PM
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is they currently change the server name and cause this issue? 
how to solve this?

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Sébastien Riccio Replied
12/22/2019 at 7:43 PM
Hi,

You're probably using a SSL certificate that doesn't match the hostname using to connect the server.

If your users are connecting to mail.mymailservice.com, the SSL certificate you use should match this name.
Sébastien Riccio System & Network Admin https://swisscenter.com
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