[Exim] @mx_any and 127.0.0.1

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Lähettäjä: Philip Hazel
Päiväys:  
Vastaanottaja: exim-users
Aihe: [Exim] @mx_any and 127.0.0.1
Look at this stupid set of DNS records:

ibase.com.               MX 20 mailhost.ibase.com.
ibase.com.               MX 30 inbound.firstnet.net.uk.
ibase.com.               MX 55 relay.firstnet.net.uk.
ibase.com.               MX 666 non-mail.ibase.com.
ibase.com.               MX 10 mail.ibase.com.
mail.ibase.com.          A  62.105.94.141
mailhost.ibase.com.      A  62.105.94.141
non-mail.ibase.com.      A  127.0.0.1
inbound.firstnet.net.uk. A  212.103.224.21
relay.firstnet.net.uk.   A  212.103.224.41


Somebody I know discovered them when trying to make use of @mx_any in an
Exim configuration. Because of the 127.0.0.1 the domain ibase.com
matches @mx_any.

Does the list think that the default for @mx_any matching should be
changed to ignore 127.0.0.0/8 and 0.0.0.0 as is the case for the
dnslookup router in the default configuration? (It's a very simple
patch.) Does there need to be an option?

And finally, to satisfy my curiosity: what on earth do you suppose the
above set of records is supposed to achieve?

Philip

--
Philip Hazel            University of Cambridge Computing Service,
ph10@???      Cambridge, England. Phone: +44 1223 334714.