On Tue, Nov 19, 2013 at 02:52:33PM -0800, Mark Sapiro wrote: > On 11/19/2013 02:24 PM, Hung Phan wrote: > > ... it seems that Mailman thinks canby.k12... domain is hosted at > > 10.30.xxx.xx, which is our internal DNS service. Is there a tool for us to > > trace the email sending route?
You could look at your routing table(s), perhaps? (but see below). >We suspect it is the DNS setting but need more info to determine where does it >stop. Do we need an MX record, A record or something else in our DNS service >so Mailman not try to connect to this DNS server and end up failing? You could write a custom route in Exim, or a custom router/transport: sometimes it's 'necessary' to define a route for a receiving MX, particularly if the receiving MX is run by a clueless numpty (or, indeed, someone who has a different interpretation of RFCs/Best Practice etc than you). > This has nothing to do with Mailman. It is strictly exim. Mailman is not > doing any DNS lookups on anything except maybe localhost or whatever is > set as SMTPHOST in Defaults.py/mm_cfg.py. > > Mailman passes the message and list of recipient addresses to this SMTP > server (exim) and it's up to that server to deliver the mail. > > You have MX records > > $ dig mx canby.k12.or.us > ... > ;; ANSWER SECTION: > canby.k12.or.us. 86400 IN MX 60 ALT2.ASPMX.L.GOOGLE.com. > canby.k12.or.us. 86400 IN MX 70 ASPMX2.GOOGLEMAIL.com. > canby.k12.or.us. 86400 IN MX 70 ASPMX3.GOOGLEMAIL.com. > canby.k12.or.us. 86400 IN MX 10 > canby.k12.or.us.s9a1.psmtp.com. > canby.k12.or.us. 86400 IN MX 20 > canby.k12.or.us.s9a2.psmtp.com. > canby.k12.or.us. 86400 IN MX 30 > canby.k12.or.us.s9b1.psmtp.com. > canby.k12.or.us. 86400 IN MX 40 > canby.k12.or.us.s9b2.psmtp.com. > canby.k12.or.us. 86400 IN MX 50 ASPMX.L.GOOGLE.com. > canby.k12.or.us. 86400 IN MX 60 ALT1.ASPMX.L.GOOGLE.com. Internally, though, you may get a different result -- it could be worth checking resolv.conf(5), nsswitch.conf(5), and `host -t ns` (or equivalent through dig(1)). > You would probably have better luck taking this exim issue to an exim > support resource. As a general purpose mail tool, swaks <http://www.jetmore.org/john/code/swaks/> can often be quite useful. -- "Should not the Society of Indexers be known as Indexers, Society of, The?" -- Keith Waterhouse ------------------------------------------------------ Mailman-Users mailing list Mailman-Users@python.org https://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://wiki.list.org/x/AgA3 Security Policy: http://wiki.list.org/x/QIA9 Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ Unsubscribe: https://mail.python.org/mailman/options/mailman-users/archive%40jab.org
