[geeks] AAAAAAAAGH! Spammers on the loose!

David Cantrell geeks at sunhelp.org
Tue Sep 25 17:12:48 CDT 2001


On Mon, Sep 24, 2001 at 08:18:01PM -0700, Peter L. Wargo wrote:
> On Mon, 24 Sep 2001, Kurt Huhn wrote:
> 
> > I deny all SMTP from anywhere.  However, if I'm on the road and need to send
> > mail, I sometimes setup a temporary rule in sendmail to allow relaying from
> > my IP.  More often than not, though, I just use SSH into the mail server and
> > use Mutt to read/send mail.
> 
> Hard to do when I let other folks use basenji.com for email accounts....

Decline to service requests by default.  Let anyone send through the server
if they are sending to a valid_mailbox_or_forwarding_alias at yourserver.  Let
anyone send through the server if they are from a trusted IP**.

* - or if they are sending to a domain for which you provide secondary MX;
at least that's how you configger exim, I assume sendmail is similar.

** - usually machines on the local subnet and a few known-good addresses

-- 
David Cantrell | david at cantrell.org.uk | http://www.cantrell.org.uk/david

    Considering the number of wheels Microsoft has found reason
    to invent, one never ceases to be baffled by the minuscule
    number whose shape even vaguely resembles a circle.
                                                      -- anon, on Usenet



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