Postfix relay with authentication by specific users only

Discussion in 'Installation/Configuration' started by egirard, Aug 29, 2016.

  1. egirard

    egirard New Member

    Hi,
    Our postfix is set up to authenticate users. We need to restrict relay to a limited number of users. It is possible?.
    Thanks for your help !!
     
  2. Jesse Norell

    Jesse Norell Well-Known Member

    Postfix has some very basic rate limiting based on the client ip address, eg.
    Code:
    # postconf | grep rate_limit
    smtpd_client_connection_rate_limit = 100
    smtpd_client_message_rate_limit = 100
    smtpd_client_new_tls_session_rate_limit = 0
    smtpd_client_recipient_rate_limit = 600
    
    More flexible limiting would require an external program, eg. postfwd can apply rate limits, as can policyd.
     
  3. egirard

    egirard New Member

    Thanks Jesse for your reply.
    I am looking a solution to only allow smtp authentication for a few mail users.
    Thanks for your help.
     
  4. Jesse Norell

    Jesse Norell Well-Known Member

    Ispconfig 3.1 (coming soon) has a 'Disable SMTP (sending)' checkbox in mailboxes, probably just what you need.
     
  5. egirard

    egirard New Member

    Thanks Jesse !
    It exactly what I am looking. I will wait to this release. Do you know when this will be available?
     
  6. Jesse Norell

    Jesse Norell Well-Known Member

    No, there's no clear timeframe. It seems to be quite close, and the number and severity of bugs is fairly small, but most guesses at a timeframe don't hold, so as always, it'll be available when it's ready. :)
     

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