Outlook Certificate Error

You can view your own certificates or those that you receive in email messages. Describes an issue that triggers a the name on the security certificate is invalid or does not match the name of the site warning in outlook in a dedicated or itar office 365 environment. The security certificate is not from a trusted certifying authority.

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The Name On The Security Certificate Is Invalid Or Does Not

Fixing Outlook Certificate Errors Ac Brown S It World

Certificate Error Microsoft Tech Community 50561

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Outlook certificate error. Outlook uses certificates in cryptographic email messaging to help keep communications secure. Im getting a security warning when i open outlook. Outlook is unabletoconnect tothis servers. Hope this helps someone else down the roadthis is.

In particular you will want to make sure you are using a valid certificate on the exchange server. There is a problem with the proxy servers security certificate s. Spent yesterday working with microsoft to get this resolved. Here is what we came up with.

Certificate errors need a bit of knowledge to resolve sometimes so you may want to learn about digital certificates and what causes certificate errors. The server you connected to is using a security certificate that cannot be verifieda required certificate is not within its validity period when verifying against the current system clock or the timestamp in the file.