On Fri, 28 Jun 2002 16:50:42 +0100 Ollie Cook <ollie@???> wrote:
> On Fri, Jun 28, 2002 at 04:28:16PM +0100, Philip Hazel wrote:
> > On Fri, 28 Jun 2002, Alistair Knight wrote:
> >
> > [reformatted to shorter lines]
> >
> > > I am currently using 'sender_address_relay' to control relaying,
> >
> > Not a good idea. Sender addresses are trivially forged. I wonder if
> > spammers read this list and pick up admissions like that?
>
> I would doubt it - that requires some modicum of effort on their part.
but ... i see frequent relay attempts off of my server, forging my own
email address and those of customers into MAIL FROM:
in other words, spammers frequently look for weak efforts at relay control.
just don't use that method; it will bite you in the ass eventually whether
you admit it in public or not.
richard
--
Richard Welty
rwelty@??? Averill Park Networking
rwelty@??? Unix, Linux, IP Network Engineering, Security
rwelty@??? 518-573-7592
