Re: Mail Servers blocking BAD Helo

From: Fernando Amatte (famatte_at_gmail.com)
Date: 12/30/04

  • Next message: Idol Crash: "Re: N00b Question" 
    Date: Thu, 30 Dec 2004 18:20:42 -0200
To: "brandon@xcodes.net" <brandon@xcodes.net>

    Hello Brandon

    I faced a similar problem, for a long time I managed ISPs and we
    decided to use Qmail ( www.qmail.org ) with SPAMCONTROL (
    http://www.fehcom.de/qmail/qmail.html ) as our SMTP server.

    SMPT RFC says that HELO field must be the FQHN, but when you are
    working with "windows" customers you have a problem ( another one ) .
    Outlook Express send HELO as the "Machine's name". So we decided do
    not DNS Lookup for the HELO/EHLO greeting, but use a good and well
    done blocklist ( badhelo ) with regex.
    This way we can block some kind of virus, automated Spam programs and
    thinks like you tell, just including another line on badhelo file.

    Fernando Amatte

  • Next message: Idol Crash: "Re: N00b Question"