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
qmail used to do ANY queries, but everyone I know who uses qmail has
undone that particular hack
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."
I wonder if that still works. Probably not, since most of us have
replaced the SMTP daemon with something else.
Regards,
John Levine, johnl(_at_)taugh(_dot_)com, Taughannock Networks, Trumansburg NY
Please consider the environment before reading this e-mail.
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