On Wed, Apr 24, 2002 at 03:03:56AM -0500, Chip Rosenthal wrote:

> There is RFC-2142, although I'd be surprised if it's advanced to a
> full standard. It seems more appropriate as a BCP to me.

RFC2142 is the first RFC to formally codify the longstanding
<abusedomain.tld> concept which had long existed mainly as a rule of
thumb.

It says, in part:

 Most organizations do not need to support the full set of mailbox
names defined here, since not every organization will implement the
all of the associated services. However, if a given service is
offerred, then the associated mailbox name(es) must be supported,
resulting in delivery to a recipient appropriate for the referenced
service or role.

 Section 4 of RFC2142 specifies the purpose of the abuse (and other)
local-parts:

 Operations addresses are intended to provide recourse for customers,
providers and others who are experiencing difficulties with the
organization's Internet service.

 It is, therefore, a widely-held misconception that abusedomain only
needs to work for Internet Service Providers. Instead, it should work
for any "organization" for which e-mail service exists, whether that
service is provided to one user or one million.

It is also a widely believed, but inaccurate, that the abusedomain
requirement is a suggestion and nothing more. Section 1 of RFC2142
explains very clearly that it is a must criteria:

 However, if a given service is offerred, then the associated mailbox
name(es) must be supported, resulting in delivery to a recipient
appropriate for the referenced service or role.

 Given that, the listing criterium is that any domain for which
abusedomain is rejected, times-out, or for any other reason cannot be
delivered, that shall be considered grounds for listing, excepting as
such that if the rejection is obviously based on some criteria which
reject the sender. (Unlike the rules regarding "postmaster", nothing
requires the abuse address to accept from "everyone", so if someone
has blocked a particular host from sending mail to that server, that
could conceivably include blocking mail destined for the abuse
address). However, if this exemption is abused (e.g., a site claiming
that "abuse" has elected to receive mail from only two other places),
that site will no longer be allowed to partake of that exemption.

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandtcharite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
The number of the beast - vi vi vi.
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