After installing Mac OS I get the following error message: The SMTP connection to the server “smtpauths.bluewin.ch” failed. Select a different outgoing email server from the list below, or click Try Later to leave the email in your outbox until it can be sent. Sending from: My name <*************@bluewin.ch> I tried both the automatic setup and manually. Before installing Yosemite it worked fine.