about the improvment of network performance

Marek Samoc mjs111 at rsphy1.anu.edu.au
Sat Jan 19 11:17:31 EST 2002

On Fri, 18 Jan 2002, Alex Satrapa wrote:

AS> On Friday, January 18, 2002, at 08:37 , Damien Elmes wrote:
AS> >
AS> > Matthew, it appears your address is being blocked by Telstra:
AS> >
AS> >     Recipient: <matthew at topic.com.au>
AS> >     Reason:    Service unavailable; [] blocked using
AS> > ztl.dorkslayers.com, reason: is listed by
AS> > ztl.dorkslayers.com
AS> >
AS> > Please reply to <postmaster at bigpond.com>
AS> > if you feel this message to be in error.
AS> Nope - that's the topic.com.au mailserver.  It's probably BigPond that's
AS> being blocked by TSA :)
AS> Alex

Well, dorkslayers appear to be a little overeager in including various
relays in their list. I included them experimentally in my dnsbl
configuration on one of my servers but had to remove them.

For those of you running your own sendmail, here's the set of dnsbl
entries into your sendmail.mc that I find reasonable (although I did have
to explicitly allow some relays not to lose some e-mail):

FEATURE(`dnsbl', `relays.ordb.org', `Mail from $&{client_addr} rejected -
see http://ordb.org/')dnl
FEATURE(`dnsbl', `inputs.orbz.org', `Mail from $&{client_addr} rejected -
see http://orbz.org/')dnl
FEATURE(`dnsbl', `Relays.OsiruSoft.com', `Mail from $&{client_addr}
rejected - see http://relays.osirusoft.com/')dnl


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