[governance] Re: Antispam practices

[Stephane Bortzmeyer]

On Mon, Sep 25, 2006 at 10:19:08AM +0200,
 Patrick Vande Walle <patrick at vande-walle.eu> wrote 
 a message of 54 lines which said:

> Forcing connections to go through well maintained and identified
> SMTP servers

ISP server != well-maintained server. Actually, a reason why many
people do *not* want to go through the ISP email servers is because
they are not well-maintained: they lose or delay messages and you have
no way of knowing it, no observation is possible.

More on-topic for this list: more and more ISP force users to go
through their servers for various reasons (the last trend is to block
port 53 and to force users to use the ISP's DNS servers, then to have
wildcards in these servers, a la Earthlink). This is clearly a serious
and on-topic issue for this group.

> It should have a valid DNS PTR record bearing your machine's name
> and not 123.456.789.012-dsl.myisp.com.

No RFC ever said so. The possible future RFC (see
http://www.ietf.org/internet-drafts/draft-ietf-dnsop-reverse-mapping-considerations-00.txt)
does not say so.

> You cannot achieve that with a dynamic IP.

You can, with dynamic DNS.

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