[exim] two hosts, same configuration, different routing of s…

Hello all,

I was trying to configure exim4 on two debian boxes in order to send
local mail locally, and external mail through an smtp server.


well, say box A has a user a, and box B has a user b.

when I check the routing (exim -bt a) on box A, it says:
R: system_aliases for a@???
R: userforward for a@???
R: procmail for a@???
R: maildrop for a@???
R: lowuid_aliases for a@??? (UID 1000)
R: local_user for a@???
a@???
router = local_user, transport = mail_spool


while the answer on host B for user b (exim -bt b) is:
R: smarthost for b@???
b@???
router = smarthost, transport = remote_smtp_smarthost
host smtp.domain [x.y.z.t]


where <domain> is the full domain name.
I checked the configuration several times without finding anything
potentially responsible for the different behavior.

Box A is debian wheezy, B debian jessie
exim4 on A is: Exim version 4.80 #3 built 24-Jul-2014 03:28:10
on B: Exim version 4.84 #3 built 17-Feb-2015 17:45:49

Does anyone of you have any idea of what is going on, or at least
suggest some steps to debug what happens?

thank you in advance
Francesco






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********************************************
Francesco De Biasio
cell. +39 348 8838760
e-mail: simiasota@???
pec: francesco.debiasio@???