🚀 go-pugleaf

 
   I am having some trouble with uksendmail (V2.1) in a multihost
site - I'm not sure whether my configuration or my understanding
of host hiding is at fault.
 
   We have an NRS registered site name `planet.bt.co.uk', behind which
a number of machines (workstations, development machines, general 
purpose minis etc) are hidden. It is impractical for us to maintain
a list of machines in the local domain on every slave.  We therefore 
route all mail for the local domain (but not for the local host) 
through a server which holds the full list of hosts and user aliases.
 
   This scenario is very similar to that given in the examples, so we
based our tables on the cs.glasgow ones. The only significant difference
was that we tried to put a wildcard entry in the local channel table:
 
		%s.planet.bt.co.uk	local_gateway
 
   I assume (are these reasonable?) the following interpretations for
local domain addresses used on the slave machine:
1	user					Local delivery
2	user@localhost				Ditto
3	user@localhost.planet.bt.co.uk		Ditto
4	user@planet				Via server to preferred host
5	user@planet.bt.co.uk			Ditto
6	user@otherhost				Via server to specified host
7	user@otherhost.planet.bt.co.uk		Ditto
 
   Addresses 1,3,4 and 6 work as expected.
   Address 2 is not recognised as local unless LHOST is included in the
	local channel table - otherwise it goes out via the server.
   Address 5 is stripped unconditionally in ruleset 0 and delivered 
	locally.
   Address 7 was intended to be caught by the wildcard; unfortunately
	all wildcard entries are appended to ruleset 16, and the address
	is rejected by ruleset 17 before the match can occur. The result
	is <Error: Local Domain Unknown>.
 
    My interpretations seem to be shared by the majority of the users
on site, so if they are wrong my life is going to become very difficult.
I have hacked the sendmail.cf by hand to achieve the desired behaviour,
but I would be interested to know whether uksendmail can (should?) 
handle this set-up without such intervention. Have I done something
wrong?
 
    If anyone can shed some light - many thanks.
 
-------------------------
James Collier               jrac@planet.bt.co.uk
Colonial Services Ltd., c/o Group RT5111, BT Research Labs., 
Martlesham Heath, Ipswich, Suffolk IP5 7RE, United Kingdom.
Office: +44  473  64 6778/2870 (was james@cantuar.{uucp,ac.nz})