Diferencia entre revisiones de «Antispam methods»

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(TMDA)
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=TMDA=
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Significantly reduce the amount of spam
 +
*whitelists: accept mail from known, trusted senders.
 +
*blacklists: refuse mail from undesired senders.
 +
*challenge/response: allows unknown senders which aren't on the whitelist or blacklist the chance to confirm that their message is legitimate (non-spam).
 +
*tagged addresses: special-purpose e-mail addresses such as time-dependent addresses, or addresses which only accept certain kinds of communication. These increase the transparency of TMDA for unknown senders by allowing them to safely circumvent the challenge/response system.
  
 
=References=
 
=References=
 
*[http://www.debian-administration.org/articles/168 Greylisting with Postfix (and other antispam stuff)]
 
*[http://www.debian-administration.org/articles/168 Greylisting with Postfix (and other antispam stuff)]
 
*[http://bulma.net/body.phtml?nIdNoticia=2349#configuracion_anti-uce Servidor de correo con Postfix, Cyrus y MySQL administrado desde OpenMailAdmin]
 
*[http://bulma.net/body.phtml?nIdNoticia=2349#configuracion_anti-uce Servidor de correo con Postfix, Cyrus y MySQL administrado desde OpenMailAdmin]

Revisión del 12:08 19 nov 2006

postgrey

apt-get install postgrey
netstat -anp | grep 60000
 tcp        0      0 127.0.0.1:60000         0.0.0.0:*               LISTEN     18478/postgrey.pid

/etc/postfix/main.cf

check_policy_service inet:127.0.0.1:60000


Blacklist

/etc/postfix/main.cf

reject_rbl_client sbl-xbl.spamhaus.org


TMDA

Significantly reduce the amount of spam

  • whitelists: accept mail from known, trusted senders.
  • blacklists: refuse mail from undesired senders.
  • challenge/response: allows unknown senders which aren't on the whitelist or blacklist the chance to confirm that their message is legitimate (non-spam).
  • tagged addresses: special-purpose e-mail addresses such as time-dependent addresses, or addresses which only accept certain kinds of communication. These increase the transparency of TMDA for unknown senders by allowing them to safely circumvent the challenge/response system.

References