It does not appear that `fetchmail` supports TLS to the SMTP server. This is normally not a problem, as it usually delivers emails locally.
You can work around this by delivering to a local SMTP server and have it handle the delivery. If your don't need or want a full service server like `exim4` or `postfix`, you can use a light-weight relay like `esmtp` or 'msmtp` to deliver the mail.
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