Rodd Clarkson wrote:
[rodd@localhost ~]$ time host home.gateway
home.gateway has address 192.168.1.254
;; Warning: short (< header size) message received
;; connection timed out; no servers could be reached
;; Warning: short (< header size) message received
;; connection timed out; no servers could be reached
real 0m20.050s
user 0m0.002s
sys 0m0.005s
[rodd@localhost ~]$ time host 192.168.1.254
254.1.168.192.in-addr.arpa domain name pointer home.gateway.
real 0m0.066s
user 0m0.004s
sys 0m0.005s
[rodd@localhost ~]$ time host 192.168.1.100
;; Warning: short (< header size) message received
;; connection timed out; no servers could be reached
real 0m10.009s
user 0m0.004s
sys 0m0.006s
[rodd@localhost ~]$
Those timeouts look to me to be your problem. You can try running
tcpdump on the server. Read the docs, but it's something like this:
Yeah, it would appear to be. Sadly 192.168.1.254 is a wireless internet
router, so I don't have much control there.
Well, you can install bind and cacheing-nameserver, and configure your
own zones.
It's educational, earns geek points:-)
Do you control the mail server?
Yes?
Can your mail server resolve the IP addresses of your clients?
Nope.
That's probably part of the problem. Can you fix that?
The mail server is in Western Australia (like you ;-] ) so it doesn't
really need to be able to resolve my local IP stuff does it?
It probably wants to resolve the IP address of its client; mostly in
these circles folk on a LAN are using NAT and so the IP address it sees
is your gateway to the net, js.id.au in my case, 125.168.4.115 in yours.
125.168.4.115 resolves, so that shouldn't be the problem.
Could you run this command while you send some email:
tcpdump -i any -A -s 9999 -ttt port 25 and host 192.168.1.100
That will show you the traffic, in ascii.
What you ware looking for is something like
ehlo 192.168.1.100
and that's wrong, the text after ehlo should be resolvable.
Can you send through Wholesale Communications Group to see whether
that's better?
Now I really must go.
--
Cheers
John
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