Spamassassin

[Desai, Jason]

Just a clarification for those who may not know - Razor, DCC, and Pyzor do
not work directly with MailScanner.  SpamAssassin works directly with
MailScanner, and Razor, DCC, and Pyzor will work will SpamAssassin.

Jason

> -----Original Message-----
> From: Ugo Bellavance [mailto:ugob at LINUX.CA]
> Sent: Wednesday, August 13, 2003 9:46 PM
> To: MAILSCANNER at JISCMAIL.AC.UK
> Subject: Re: [MAILSCANNER] Spamassassin
>
>
> For everyone's info, I looked the descriptions of the
> software that can work
> with MailScanner:
>
>
> Spamassassin:
>
>  The spam-identification tactics used include:
>
>     *header analysis: spammers use a number of tricks to mask their
> identities, fool you into thinking they've sent a valid mail,
> or fool you
> into thinking you must have subscribed at some stage.
> SpamAssassin tries to
> spot these.
>     *text analysis: again, spam mails often have a
> characteristic style (to
> put it politely), and some characteristic disclaimers and CYA text.
> SpamAssassin can spot these, too.
>     *blacklists: SpamAssassin supports many useful existing
> blacklists, such
> as mail-abuse.org, ordb.org or others.
>
>
> Razor:
>
> Collaborative spam filtering network allowing users to report
> and filter out
> matching spam.
>
> DCC:
>
> The DCC or Distributed Checksum Clearinghouse is a system of
> thousands of
> clients and more than 150 servers that collects and count
> checksums related
> to several million mail messages per day, most as seen by
> Internet Service
> Providers. The counts can be used by SMTP servers and mail
> user agents to
> detect and reject or filter spam or unsolicited bulk mail. DCC servers
> exchange or "flood" common checksums. The checksums include
> values that are
> constant across common variations in bulk messages, including
> "personalizations."
>
> Pyzor:
>
>  Pyzor is a collaborative, networked system to detect and
> block spam using
> identifying digests of messages.
>
> Pyzor initially started out to be merely a Python
> implementation of Razor,
> but due to the protocol and the fact that Razor's server is
> not Open Source
> or software libre, I decided to impelement Pyzor with a new
> protocol and
> release the entire system as Open Source and software libre.
>
> Since the entire system is released under the GPL, people are
> free to host
> their own independent servers. Server peering is planned for a future
> release.
>