Sabahattin Gucukoglu <listsebby(_at_)me(_dot_)com> wrote:
Thanks for the extra Sendmail knowledge.
http://cr.yp.to/im/cname.html
Don't believe everything on that page. Sendmail does not do ANY queries,
and qmail's canonicalization code is bad in several ways.
http://fanf.livejournal.com/122220.html
He says: "If you set up www.your.site with a CNAME for your.site, mail to
www.your.site will automatically be accepted by your.site's mailer. Many
sites rely on this feature."
My mailers have never (well, going back to 1997 at least) done CNAME
canonicalization and this hasn't caused the interop problems you might
expect from many sites relying on this feature.
His comment about a 2001 target for deprecating the feature is almost as
amusing as the Sendmail documentation...
Tony.
--
f.anthony.n.finch <dot(_at_)dotat(_dot_)at> http://dotat.at/
Southwest German Bight, Humber, Thames: Variable 4, becoming cyclonic, mainly
southeasterly 5 to 7 later. Slight or moderate. Thundery showers. Good,
occasionally poor.
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