Avoiding UCE

From: (no name) (no email)
Date: Tue Aug 02 2005 - 06:21:48 EDT

  • Next message: Jussi Silvennoinen: "Re: Avoiding UCE"

    Hi Postfix fans,

    I want to create a spam filter. I have created several filters but there
    are still 2 patterns which I cant match. Perhaps somebody has a nice idea
    ?

    Pattern a) I want to make sure the "EHLO named domain" and the "MAIL FROM:
    domain" are the same How would I do this ?

    miyasita at ns1:/etc/init.d> telnet mail.mydomain.net 25
    Trying xxx.xxx.xxx.xxx...
    Connected to mail.mydomain.net.
    Escape character is '^]'.
    220 mail.mydomain.net ESMTP Postfix (Debian/GNU)
    EHLO yahoo.com
    250-mail.mydomain.net
    250-PIPELINING
    250-SIZE 10240000
    250-VRFY
    250-ETRN
    250-STARTTLS
    250 8BITMIME
    MAIL FROM:
    250 Ok
    RCPT TO:
    250 Ok
    DATA
    354 End data with <CR><LF>.<CR><LF>
    my spam text goes here
    .
    250 Ok: queued as 577282832

              $B",",",(B

    This shouldnt be !!

    Pattern b) I want to make sure the "EHLO named domain" has the same IP as
    the client itself and/or the "MAIL FROM: domain". How would I do this ?

    Thank you for any ideas and feedback.

    Best regards

    Nils Valentin
    Tokyo / Japan
    http://www.be-known-online.com


  • Next message: Jussi Silvennoinen: "Re: Avoiding UCE"





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