Uh... The forward and reverse do match, as far as you can ever expect
them to match. It is quite common that machines are on networks where
the reverse lookup gives a different address, because of the way reverse
lookups work. So the "proper" thing is to start with a reverse lookup,
and then do a forward lookup on that result, which should then match,
and it do for that address.
Now, as far as where mails come from, that can be tricky. Mails can pass
through other MTAs on the way, depending on whatnot, so you cannot
guarantee that it comes from a specific address. Even though it usually do.
And yes, trailing-edge.com is the machine originating the mails from the
list (at least for now).
I would say that it's usually not sensible to try and use iptables or
similar filtering for smtp. Unless you essentially are ok with your mail
setup being somewhat broken.
Johnny
On 2019-04-25 00:42, James W. Laferriere wrote:
Hello Whomever , I am looking for a list (if necessary) for the
proper host that sends & receives emails for the simh (and any other
lists) .
I have harvested 71.191.185.32 from the headers of the emails I
have received .
Now this gives me doing a dig (ie: in-addr.arpa. lookup) ...
jiml@bigscrn-vm:~$ dig -x 71.191.185.32 +short
static-71-191-185-32.washdc.fios.verizon.net.
And as you can see the Inverse & Forward do not match .
I also find ... from the headers ...
jiml@bigscrn-vm:~$ dig mini-me.trailing-edge.com +short
71.191.185.32
Which leads me to believe that my harvesting is correct .
Please someone in the know correct my doubts .
I am in the process of creating a iptables accept/reject list the
assurance would help a bunch .
Tia , JimL
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: [email protected] || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
_______________________________________________
Simh mailing list
[email protected]
http://mailman.trailing-edge.com/mailman/listinfo/simh
