On Sat, May 02, 2015 at 11:27:19AM -0400, David Patte ₯ wrote: > Actually, nullmailer is a message transfer agent, simply forwarding my > mail to the smtp at my provider. And nullmailer is authenticating with my > provider using a password. But it is not authenticating using STARTTLS. STARTTLS is not for authenticating the user. It is for authenticating at least the server. User authentication is an SMTP layer thing. The sole purpose of STARTTLS in the typical use case (forget client certs for now) is to provide a secure channel, and to the right host.
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