** Forged spamming going on
Steven J. Sobol
sjsobol at nacs.net
Mon Dec 21 19:15:22 UTC 1998
On Mon, Dec 21, 1998 at 09:07:29AM -0700, Robert Tarrall wrote:
> 4) Deny relaying, which sendmail 8.9.1a will do by default (has worked
> great for us so far), and
> 5) Deny access to dial-access.att.net (and dialsprint.net, da.uu.net,
> pub-ip.psi.net, etc) which is what we're doing here just because we
> get so much spam directly from such dialup accounts these days.
If it's a forgery and the mail is not touching NAC.NET servers, neither step
is useful, although relaying should be shut off and SMTP access denied from
ISP dialup banks as a general rule.
--
Steve Sobol [sjsobol at nacs.net]
Part-time Support Droid [support at nacs.net]
NACS Spaminator [abuse at nacs.net]
Proud resident of Cleveland Heights, Ohio, the coolest place on earth.
http://www.ClevelandHeights.com
More information about the NANOG
mailing list