When connecting on port 587 (submission), is it appropriate to require the AUTH command before accepting a MAIL FROM command? If so, how do you configure postfix to behave as such?
I was testing a new installation of iRedMail/postfix and received this recommendation by a testing service (Failed this check: "Your system requires authentication (AUTH) on port 587 before the MAIL FROM command is issued.").
Plain text is shut off; using "smtpd_tls_security_level=encrypt" for smtp, smpts and submission services in master.cf.
(me = relative iRedMail/postfix/smtp n00b)
This is a general Postfix issue, not Postfix Admin. Postfix Admin is a separate tool for managing virtual domains/mailboxes. You'd be better popping over to postfix.org and ask on one of their mailing lists.
But, in my master.cf I have this :
submission inet n - - - - smtpd
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