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294027Re: smtp auth

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  • Fabrizio Monti
    Jun 27, 2013
      @/dev/rob0, you're right that it makes no sense: I wrote a huge
      stupid, it's working properly!! You ignore the previous email, now go
      outside and get some fresh air, but I take so much!!!

      Thank you so much to all of the aid that you gave me!

      2013/6/27 /dev/rob0 <rob0@...>:
      > On Thu, Jun 27, 2013 at 09:51:50AM +0200, Fabrizio Monti wrote:
      >> I did some testing and I determined that if I configure the SMTP
      >> mail client on port 25 can send e-mails only for my domains.
      >> But if I connect to telnet on port 25 I can send emails to all
      >> the domains. I can stop this?
      > First, that does not make sense. "Telnet on port 25" is the same as
      > any MUA, it's just a means to speak SMTP to a SMTP server. There's
      > no fundamental difference between a MUA and someone using telnet to
      > speak SMTP, except perhaps that the MUA is faster and makes no
      > errors.
      > Second, IIUC what you are saying, it could be that the MUA is
      > configured to AUTH, and when AUTH is refused it rightly goes away.
      > I'll go further to venture a guess that your telnet client's IP
      > address is in $mynetworks, and that you neglected to remove
      > "permit_mynetworks" from your recipient (or relay) restrictions.
      > We have no way to see what you have configured! We can't read your
      > logs. If you want help you have to SHOW us these things.
      > http://www.postfix.org/DEBUG_README.html#mail
      > See also:
      > http://www.postfix.org/BASIC_CONFIGURATION_README.html#relay_from
      > http://www.postfix.org/postconf.5.html#permit_mynetworks
      > http://www.postfix.org/SASL_README.html#server_sasl_authz
      > --
      > http://rob0.nodns4.us/ -- system administration and consulting
      > Offlist GMX mail is seen only if "/dev/rob0" is in the Subject:
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