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Re: dictionary-attack

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  • Robert Schetterer
    ... lets see your postfix conf, dont let people speculate what you might miss Best Regards MfG Robert Schetterer -- [*] sys4 AG http://sys4.de, +49 (89) 30 90
    Message 1 of 48 , Mar 23, 2013
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      Am 23.03.2013 11:49, schrieb Ejaz:
      > How do I configure my postfix not to accept the emails which sent on
      > invalid address?, since morning we have been noticed that there huge
      > spam dictionary attack on our server, all originated emails are from
      > random IPs and random from address to the invalid recipient.
      >
      >
      >
      > Thanks in advance for you kind help in regards to the control such spam
      > emails.
      >
      >
      >
      > Regards,
      > __________________
      > Mohammed Ejaz
      > Sr,Systems Administrator
      > Middle East Internet Company (CYBERIA)
      >
      >
      >

      lets see your postfix conf, dont let people speculate
      what you might miss


      Best Regards
      MfG Robert Schetterer

      --
      [*] sys4 AG

      http://sys4.de, +49 (89) 30 90 46 64
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    • Benny Pedersen
      ... add permit_sasl_authenticated before fqrdns.pcre testing -- senders that put my email into body content will deliver it to my own trashcan, so if you like
      Message 48 of 48 , Apr 7, 2013
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        On 2013-03-27 23:11, Matthew Hall wrote:

        > I ran into a bit of an issue trying out fqrdns.pcre as recommended
        > here in this thread. The header in the file recommended adding it
        > into
        > smtpd_client_restrictions. However if I place it there, I end up
        > rejecting mail even from SASL authenticated client devices, if they
        > also match a rule in fqrdns.pcre.

        add permit_sasl_authenticated before fqrdns.pcre testing

        --
        senders that put my email into body content will deliver it to my own
        trashcan, so if you like to get reply, dont do it
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