On Mon, 15 Nov 1999, Mate Wierdl wrote:
> I now realized, I do not understand how rbl(smtpd) works.
>
> Is it correct to say that rblsmtpd checks the rbl database only for
> the (most recently) connecting host? In particular, suppose I run
> rblsmtpd on A and I do not run it on B. If I have a .qmail file on B,
> with
>
> mw@A
>
> in it, and a spam is sent to this .qmail file from an rbl'd site, mw@A
> will get the message.
Correct. rblsmtpd checks the IP making the connection against the DNS
table and responds based on that lookup. Inserting another host into the
chain that does not itself run rblsmtpd or equivalent means the check is
performed against the wrong host.
This is one of the main arguments AGAINST using a secondary MX. They ALL
must use the same anti-spam measures or the anti-spam measures are
useless.
>
> Thx
>
> Mate
>
---------------------------------
Timothy L. Mayo mailto:[EMAIL PROTECTED]
Senior Systems Administrator
localconnect(sm)
http://www.localconnect.net/
The National Business Network Inc. http://www.nb.net/
One Monroeville Center, Suite 850
Monroeville, PA 15146
(412) 810-8888 Phone
(412) 810-8886 Fax
