"Marcio Andrade" <[EMAIL PROTECTED]> writes: > Algu�m aqui sabe criar um arquivo de > express�es regulares para barrar envio > de spam com o Postfix?
Veja a p�gina de manual do pcre (Perl Common Regular
Expressions). Esse � o formato de express�es regulares mais poderoso
usado pelo Postfix.
Antes, entretanto, veja se teu Postfix suporta isso (postconf -m). Se
n�o suportar, ter�s que usar express�es simples.
As regras est�o bem descritas na parte de UCE, na documenta��o.
Um exemplo:
(header)
/^from: [:digit:]+@yahoo\.com/ REJECT
/^subject:.*[[:space:].]{5,}\(?#?[[:digit:]]{2,}\)?/ REJECT
/^x-mailer: *(CTMailer|MailKing|eMerge|Diffondi|ACE Contact Manager|CyberCreek
Avalanche|Achi-Kochi Mail)/ REJECT
/^x-mailer: .*(E-mail Magnet|Avalanche|Mailcast|Group Mail|Aristotle
Mail|WorldMerge|Extractor Pro|Floodgate Pro|Emailer Platinum.*Internet
Marketing|Ellipse Bulk Emailer|RamoMail|MultiMailer|Advanced Mass Sender)/ REJECT
/^x-unsent: 1/ REJECT
# block email that has many 8-bit characters in the headers, usually
# SPAM from far east (China, Hong Kong).
/[^[:print:]]{8}/ REJECT
(body)
# Trying to stop W32.Sircam.Worm@mm transmissions
#
/^Content-Disposition: Multipart message/i REJECT
/^Content-Disposition: attachment;
filename=".*\.(doc|zip|exe|xls|jpg|gif)\.(pif|bat|com|exe|lnk)"$/ REJECT
/^Content-Disposition: attachment;
filename=.*\.(doc|zip|exe|xls|jpg|gif)\.(pif|bat|com|exe|lnk)$/ REJECT
> Quero barrar o velho 'Undisclosed.Recipient:;'
> e outros 'espertinhos' que me incomodam h� anos.
O 'Undisclosed.Recipient' voc� pode barrar, mas o 'Undisclosed
Recipients' n�o. � usado para e-mails com destinat�rios apenas em
Bcc.
> Um link j� � uma grande ajuda.
http://www.postfix.org
file:///usr/share/doc/postfix-doc-<vers�o>/html/
Sds,
--
Godoy. <[EMAIL PROTECTED]>
Solutions Developer - Conectiva Inc. - http://en.conectiva.com
Desenvolvedor de Solu��es - Conectiva S.A. - http://www.conectiva.com.br
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