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 From:  "James W. McKeand" <james at mckeand dot biz>
 To:  <m0n0wall at lists dot m0n0 dot ch>
 Subject:  RE: [m0n0wall] DNS Blacklist
 Date:  Fri, 28 Jan 2005 09:11:00 -0500
mono at centrum dot sk wrote:
> Thanx,
> but i don`t have any SMTP server on network.  Hmm, if i make rule
> which deny SMTP, then anyone would be able to send email from theirs
> Outlook and other mail clients??

Actually, it would prevent EVERYBODY from sending email. But, this
would be temporary - only enable the rule while you are trying to
pinpoint what IP is ending out SMTP traffic. You would need to tell
all of your users that sending email is restricted. Or do it while
outbound mail would be low - while everyone is at lunch or after
hours.

This will only help if you really have a machine spewing SPAM. If your
IP is listed for other reasons (see Chris Bagnall's response) this
will only restrict sending email.

_________________________________
James W. McKeand