After the Mac Mavericks upgrade, SENDING mail will not work, receiving works fine. Error msg states that can not send with the Bluewin server. Indeed, error msg states that outgoing servers are NOT online. The account settings are done by the Swisscom automated setup. Incoming server imap.bluewin.ch; outgoing server just either SMTP or Swisscom Bluewin. Swisscom support insists this is a problem with the computer settings, and will not help. The paid support hinted that I need to remove both the Bluewin account and the Keychain. I have removed all Keychain lines that I consider relevant; still not OK. All of Keychain? Any other suggestions?
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