Another sendmail relaying problem.

[Jeff Vian]

On Fri, 2004-06-25 at 12:48, Franco wrote:
> Sorry, i speach very bad english,
> i'm already installed spamassassin with clamav antivirus and
> all work fine i want block the e-mail sent through my smtp
> with mail from as one of my local user.
> 
> 

Spamassassin can do that.  Configure it so that if the mail arrives from
the internet IP with a from: user as a local user then it is spam and
gets dumped.

> Scot L. Harris ha scritto:
> 
> > On Fri, 2004-06-25 at 13:22, Franco wrote:
> > 
> >>Hi, i say that someone is able to bounce a message through my
> >>server to local user, it can use the server smtp to delivery
> >>to local user but the mail from must be any local user.
> >>
> >>Example: on my server i have 20 local users, one of this
> >>is pippo at ppppp.com, someone send e-mail through my server using
> >>my server smtp and in the from address of e-mail put pippo at ppppp.com
> >>it send the e-mail without problem.
> >>So all who want do spamming on my local user can do this.
> >>How can stop it?
> >>
> > 
> > 
> > Ah!  If you want to stop spam that is a different problem.  What you
> > describe is exactly how it is suppose to work.  If you blocked delivery
> > to your local users then email would not be of any use to them.
> > 
> > But if you want to block spam then you need to install something like
> > spamassassin on your box.  I believe FC2 ships with version 2.63 which
> > is the latest.  You will need to spend time deciding how you want to
> > configure spamassassin for your server and if you want to handle it site
> > wide or let the users handle it at their level.  There are several ways
> > to configure it depending on how you decide to do this.
> > 
> > Check out the spamassassin web site and their documentation.  There is a
> > good day or so of reading and planning you will need to do to set this
> > up.
> > 
>