On Thu, Oct 31, 2019 at 03:58:03PM +0100, Ferdinand Goldmann wrote:
> I need a Postfix (3.3) installation to only accept mails sent after STARTTLS,
> so I've set smtpd_tls_security_level = encrypt in main.cf. However, Postfix
> still allows sending mails withouth encryption.

accept != send.

Accepting, aka receiving, mails is done in smtpd, so smtpd_* options are
in effect.

Sending mails is done in smtp, so smtp_* options are in effect.

Bastian

-- 
Lots of people drink from the wrong bottle sometimes.
                -- Edith Keeler, "The City on the Edge of Forever",
                   stardate unknown

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