I changed exchange server setting and now outlook won't open.

[raya]

I changed my exchange server setting in Outlook in order to receive yahoo
account emails on my Outlook. It didn't work. Worse yert, the Outlook no
longer opens and I have no way to get back in and fix the exchange server
setting. Please help-Ray

 

[Pat Willener]

How did you change Exchange settings to receive Yahoo mail? I don't use
Yahoo, but I thought that Yahoo only supported POP/SMTP?

To fix your settings use the Control Panel's Mail applet.

 

[Brian Tillman [MVP - Outlook]]

I changed my exchange server setting in Outlook in order to receive yahoo
account emails on my Outlook. It didn't work. Worse yert, the Outlook no
longer opens and I have no way to get back in and fix the exchange server
setting. Please help-Ray

Restore a system restore point from before you made your change.