microsoft outlook not connecting to server

For example, type server_/rpc in the Address bar of the Web browser, and then press Enter. In Microsoft Internet Explorer, connect to the RPC server or to the secure server. To examine the certificate, follow these steps: Then, contact your system administrator to resolve this issue. Resolution 1: Examine the certificate for error message 1 or 2Įxamine the certificate.

A third-party add-in or a third-party browser add-in is preventing access.

The certificate doesn't match the name of the site.

The certificate may be invalid or revoked.

You haven't trusted the certification authority at the root.

The connection to the server requires a certification authority (CA).

This issue may occur if one or more of the following conditions are true: See the 'More information' section for information about the bitmask certificate problem codes.įor error message 3, the error code is expected to always be 0x00000008. This is the Microsoft Exchange Server RPC proxy server name.įor error message 1 and error message 2, the error code that's returned is the sum of all the bitmask certificate problem codes. The %s placeholder is the Outlook profile property 001f6622. Outlook is unable to connect to the proxy server (Error Code 0) The name on the security certificate is invalid or does not match the name of the target site. There is a problem with the proxy server's security certificate. Outlook is unable to connect to this server.(%s)'

The security certificate is not from a trusted certifying authority. There is a problem with the proxy server's security certificate, %s. Outlook is unable to connect to this server. The name on the security certificate is invalid or does not match the name of the site.

When Microsoft Outlook tries to connect to a server by using a remote procedure call (RPC) connection or a secure HTTP (HTTPS) connection, you receive one of the following error messages:

Microsoft outlook not connecting to server