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[leafnode-list] Support policy -- stupid spam filters.



Dear leafnode list readers,

this is a reminder: I have discontinued support for any users at sites
that do not accept mail from dialups a while back. This policy has not
changed and is non-negotiable.

I am not willing to use any of my ISP's SMTP relay servers because I
can't see their configuration, queues and logs, so their SMTP servers
are black boxes for me with uncertain reliability.

I have yet to see scientific research on how efficient DULs really are
and how much legitimate mail they block.

The counter points at
http://homepages.tesco.net/~J.deBoynePollard/FGA/maps-dul-is-wrong.html
are compelling.

So if you expect my help, don't hinder my support: call your ISP that
his DUL are hindering your email experience, tell him to fix this on
short notice, and switch your ISP or mail provider if they don't fix
this problem and remove the DUL. Note also that the osirusoft RBL is
very aggressive and mostly indifferent.

Spammers are already doing enough damage to email, the DUL doesn't help
against spammers, but pro spammers, because they are driven to use the
much faster ISP relay servers, so they can blast their spam off much
faster at a much lower cost to themselves. DUL is counter productive.

Real spam filtering needs to look at the mail that is sent, filters that
do this are spamassassin, spamprobe, bogofilter, qsf, crm114 and some
more that I'm not aware of. I don't recommend any of these because they
are all different in the modus operandi, they just share the "sort mail
after their contents" goal. For fairness' sake, I must state that I am
involved with bogofilter. You get to decide if that's good or bad :-)

If you want to receive further support for leafnode, choose an ISP that
lets my mail sent from a dialup pass through.

I've just received this incorrect and braindead bounce, it claims dialup
when in fact the mail wasn't sent from a dialup but from the Uni
Würzburg mail servers which have fixed IPs. NOTE: this rule will block
mail from road warriors that do send mail through their ISP's mail
relay, and is absolutely off tracks and NOT in the intent of dialup user
lists.

Note well: my point is absolutely non-negotiable. You use dialup
blacklists, you don't get my support. (This extends to all other
projects I am a co-maintainer of, such as bogofilter.)

I might reconsider my point of view if I was offered sponsoring of a
UNIX "root server" (with a recent unix, FreeBSD, NetBSD, Linux) with
backup and one domain for two years that doesn't require banners.

I will put a text note with regular text size "server sponsored by ..."
or "hosting sponsored by ..." on the bottom of the front page and accept
one icon that is not higher than 64 pixels and no wider than 400 pixels
though.

| Subject: Mail Delivery failed: returning to sender
| 
| This message was created automatically by mail delivery software.
| 
| A message that you sent could not be delivered to all of its recipients. 
| The following address(es) failed:
| 
|   telespan.demon.co.uk [194.222.105.82]:
| 
| MAIL FROM:<matthias.andree@xxxxxx>
| 250 receiving from matthias.andree@xxxxxx
| RCPT TO:<linux@xxxxxxxxxxxxxx>
| 250 will send to linux@xxxxxxxxxxxxxx
| DATA
| 354 send the message, terminate with "."
| .
| 554 Dialup: see <http://relays.osirusoft.com/>
| 
| ----- Original Message Follows ------
| 
|  Received: from punt-1.mail.demon.net by mailstore for linux@xxxxxxxxxxxxxx
|            id 1051007275:10:05601:90; Tue, 22 Apr 2003 10:27:55 GMT
|  Received: from wpxx02.toxi.uni-wuerzburg.de ([132.187.168.2])
|            by punt-1.mail.demon.net  id aa1006419; 22 Apr 2003 10:27 GMT
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|  From: Matthias Andree <matthias.andree@xxxxxx>
|  Reply-To: leafnode-list@xxxxxxxxxxxxxxxxxxxxxxxxxxxx
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|  Subject: Re: [leafnode-list] fetchnews error
|  
|  Chris Jones schrieb am 2003-04-21:
|  
|  > I have just installed leafnode on my linux system. The installation 
|  
|  1. Which version have you installed?
|  2. How did you do it?
|  
|  -- 
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-- 
Matthias Andree

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