I have had Outlook set up with Yahoo for a long time. All at once it is not working. Log into incoming works fine. I cannot get a test message to send. I am sure it is just some ticky detail that I'm missing. Any help would be greatly appreciated.


Windows 10 new to me, Outlook 2010


"Send test e-mail message: Outlook cannot connect to your outgoing (SMTP) e-mail server. If you continue to receive this message, contact your server administrator or Internet service provider (ISP)."


"Send test e-mail message: The connection to the server was interrupted. If this problem continues, contact your server administrator or Internet service provider (ISP)."