Hello everybody
Problem :
When performing a "sender_verify" action on incoming mail, it seems that
the various lookuphost routers are tested. As a result of our configuration
(see below),
a domain with no MX but only an A record is rejected though it shouldn't be.
I thought that these routers were for outgoing mail ("remote addresses") only
and not
for verification.
How can I configure exim to accept messages from domains with either
an MX _or_ an A record while keeping our lookuphost configuration?
---
Excerpt from our configure file :
(I replaced some real domains by "some-other-domains")
# Main configuration settings
sender_verify
local_domains = @:unifr.ch:*.unifr.ch:some-other-domains.ch
end
# routers configuration
#
# follow MX discipline for computers outside our network
lookuphost_mx:
driver = lookuphost
domains = "!*.unifr.ch:!*some-other-domains:*"
transport = remote_smtp
# don't do an MX request for computers in our network
# do an A request
lookuphost_a:
driver = lookuphost
domains = "*.unifr.ch:*.some-other-domains.ch"
transport = remote_smtp
gethostbyname=true
# RFCs require this
literal:
driver = ipliteral
transport = remote_smtp
end
----
Now If I want to verify anonymous@??? :
451 rejected: temporarily unable to verify sender address (try again later)
<anonymous@???>
---
The test : (using the -bi option as advised by this so good documentation)
$HOME/bin/exim -bh 216.156.2.4
**** SMTP testing session as if from host 216.156.2.4
**** Not for real!
>>> host in host_lookup? yes (0.0.0.0/0)
>>> looking up host name for 216.156.2.4
>>> IP address lookup yielded ns1.9netave.com
>>> host in host_reject? no (option unset)
>>> host in host_reject_recipients? no (option unset)
>>> host in sender_unqualified_hosts? no (option unset)
>>> host in receiver_unqualified_hosts? no (option unset)
>>> host in helo_verify? no (option unset)
>>> host in helo_accept_junk_hosts? no (option unset)
220 siufuxsun04.unifr.ch ESMTP Exim 3.03 #1 Mon, 06 Nov 2000 15:28:32 +0100
HELO mail7.9netave.com
I got this name from the log file after the problem was dectected.
250 siufuxsun04.unifr.ch Hello ns1.9netave.com [216.156.2.4]
MAIL FROM: anonymous@???
>>> anonymous@??? in sender_reject? no (option unset)
>>> anonymous@??? in sender_reject_recipients? no (option unset)
>>> host in sender_verify_hosts? yes (*)
>>> verifying sender anonymous@???
>>> anonymous@??? in root@@? no (end of list)
>>> anonymous@??? in exim@@? no (end of list)
(lot of lines without too much interest)
>>> web.directnic.com in local_domains? no (end of list)
ok
>>> web.directnic.com in "!*.unifr.ch:!*.some-other-domains:*"? yes (matched *)
?????? what's going on ?
The only place in the configuration file where this string exists
is where the lookuphost_mx lookuphost driver is defined. Why does it
appears here ?
this is not outgoing mail ...
>>> web.directnic.com in dns_again_means_nonexist? no (end of list)
>>> temporary error while verifying anonymous@??? - will give
error after DATA
ok, this is the origin of the problem.
250 <anonymous@???> is syntactically correct
...
Last remark : web.directnic.com doesn't have any MX (at the time of writing)
but does have an A record.
What does I do/understand wrong ?
Any comments ?
Thanks in advance.
Bruno Vuillemin
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