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Author Topic: Test: Email via IPv6 issue  (Read 6578 times)

jaxx

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Test: Email via IPv6 issue
« on: November 28, 2010, 02:46:57 AM »

Hi everyone,

Trying to get beyond the Enthusiast test... Though I have very old zone and some entries are probably a bit messy, it seems that everything should be ok for IPv6 mail reception on my side:

Test mail trying to be sent to jaxx@6.paris.jaxx.org

From an external view (using another tunnel):

Code: [Select]
jaxx@neuron3-b:~$ dig MX 6.paris.jaxx.org +short
5 stor.lab.6.paris.jaxx.org.
jaxx@neuron3-b:~$ dig AAAA stor.lab.6.paris.jaxx.org +short
2001:470:d32c:1::3
jaxx@neuron3-b:~$ dig -x 2001:470:d32c:1::3 +short
stor.lab.6.paris.jaxx.org.

I telnet'ed using IPv6 from that server and from my LAN on port 25 to try sending myself a mail with success.

It's a v6 exclusive setup on a postfix.

The only entry that appeared in the logs upon one of my numerous tests was pretty strange:

Code: [Select]
Nov 27 22:48:12 labstor postfix/smtpd[5661]: connect from unknown[unknown]
Nov 27 22:48:12 labstor postfix/smtpd[5661]: lost connection after CONNECT from unknown[unknown]
Nov 27 22:48:12 labstor postfix/smtpd[5661]: disconnect from unknown[unknown]

Without any mail being delivered, no qmgr nor local logs.

Did I miss anything?

Thx alot

Julien
« Last Edit: November 28, 2010, 03:07:18 AM by jaxx »
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sput

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    • Rob's server
Re: Test: Email via IPv6 issue
« Reply #1 on: November 28, 2010, 04:52:33 AM »

Hi there


'Unknown' suggests a DNS isssue.

I can connect to your server just fine;

sput:~$ telnet -6 stor.lab.6.paris.jaxx.org smtp
Trying 2001:470:d32c:1::3...
Connected to stor.lab.6.paris.jaxx.org.
Escape character is '^]'.
220 serv.lab.6.paris.jaxx.org ESMTP Postfix (Debian/GNU)
helo ns.sput.nl
250 serv.lab.6.paris.jaxx.org
quit
221 2.0.0 Bye
Connection closed by foreign host.

Try a bit of debugging using telnet. Typing SMTP commands (helo, mail from:, rcpt to:, data).


Regards,
Rob
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jaxx

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Re: Test: Email via IPv6 issue
« Reply #2 on: November 28, 2010, 05:01:44 AM »

'Unknown' suggests a DNS isssue.

Thx Rob,

That said, I imagine it should still show up the IP even though it couldn't resolve, shouldn't it ?

And I did get get good looking logs earlier from my own telnet'd e-mails

Code: [Select]
Nov 27 23:18:24 labstor postfix/smtpd[5761]: connect from jaxx-2-pt.tunnel.tserv4.nyc4.ipv6.he.net[2001:470:1f06:d06::2]
Nov 27 23:19:26 labstor postfix/smtpd[5761]: BF6BD540165: client=jaxx-2-pt.tunnel.tserv4.nyc4.ipv6.he.net[2001:470:1f06:d06::2]
Nov 27 23:19:37 labstor postfix/cleanup[5765]: BF6BD540165: message-id=<20101127221926.BF6BD540165@serv.lab.6.paris.jaxx.org>
Nov 27 23:19:37 labstor postfix/qmgr[4789]: BF6BD540165: from=<jaxx@jaxx.org>, size=442, nrcpt=1 (queue active)
Nov 27 23:19:37 labstor postfix/local[5766]: BF6BD540165: to=<jaxx@6.paris.jaxx.org>, relay=local, delay=24, delays=24/0.01/0/0.01, dsn=2.0.0, status=sent (delivered to command: procmail -a "$EXTENSION")
Nov 27 23:19:37 labstor postfix/qmgr[4789]: BF6BD540165: removed
Nov 27 23:19:39 labstor postfix/smtpd[5761]: disconnect from jaxx-2-pt.tunnel.tserv4.nyc4.ipv6.he.net[2001:470:1f06:d06::2]

And your connexion as well :-)

Code: [Select]
Nov 28 13:46:58 labstor postfix/smtpd[6304]: connect from tunnelXXXXX.ipv6.xs4all.nl[2001:888:XXXXX::Y]
Nov 28 13:47:06 labstor postfix/smtpd[6304]: disconnect from tunnelXXXXX.ipv6.xs4all.nl[2001:888:XXXXX::Y]

I wonder if gmail/google knows how to send pure ipv6/MX mails, otherwise gonna finish setting up my external server to see the logs.

Carrying on my tests ;-)
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jaxx

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Re: Test: Email via IPv6 issue
« Reply #3 on: November 28, 2010, 05:34:55 AM »

otherwise gonna finish setting up my external server to see the logs.

Done succesfully... a full blown e-mail sent from another server through another tunnel which handled everything perfectly...

Oh well... might get the t-shirt one day :-)
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jaxx

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Re: Test: Email via IPv6 issue
« Reply #4 on: November 28, 2010, 07:27:01 AM »

Got it !

Dunno if I changed something or if it was a cache issue, but Houray !

Code: [Select]
Nov 28 16:23:47 labstor postfix/smtpd[6432]: connect from ipv6.he.net[2001:470:0:64::2]
Nov 28 16:23:47 labstor postfix/smtpd[6432]: A51D7540166: client=ipv6.he.net[2001:470:0:64::2]
Nov 28 16:23:48 labstor postfix/cleanup[6436]: A51D7540166: message-id=<4cf2744fa5662.1290957903@ipv6.he.net>
Nov 28 16:23:48 labstor postfix/qmgr[4789]: A51D7540166: from=<ipv6@he.net>, size=463, nrcpt=1 (queue active)
Nov 28 16:23:48 labstor postfix/local[6437]: A51D7540166: to=<jaxx@6.paris.jaxx.org>, relay=local, delay=0.75, delays=0.72/0.01/0/0.01, dsn=2.0.0, status=sent (delivered to command: procmail -a "$EXTENSION")
Nov 28 16:23:48 labstor postfix/qmgr[4789]: A51D7540166: removed
Nov 28 16:23:48 labstor postfix/smtpd[6432]: disconnect from ipv6.he.net[2001:470:0:64::2]
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jaxx

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Re: Test: Email via IPv6 issue
« Reply #5 on: November 28, 2010, 07:35:50 AM »

Haha, stuck on the next one "Your MX does not appear to have working RDNS"

Despite:
Code: [Select]
jaxx@neuron3-b:~$ dig MX 6.paris.jaxx.org +short
5 stor.lab.6.paris.jaxx.org.
jaxx@neuron3-b:~$ dig AAAA stor.lab.6.paris.jaxx.org +short
2001:470:d32c:1::3
jaxx@neuron3-b:~$ dig -x 2001:470:d32c:1::3 +short
stor.lab.6.paris.jaxx.org.

+trace looks fine too

Will wait 'til tomorrow... ::)
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cholzhauer

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Re: Test: Email via IPv6 issue
« Reply #6 on: November 28, 2010, 09:00:14 AM »

Probably a cache issue

Code: [Select]
[carl@mars ~]$ dig MX 6.paris.jaxx.org +short @ns2.he.net
[carl@mars ~]$
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jaxx

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Re: Test: Email via IPv6 issue
« Reply #7 on: November 28, 2010, 01:46:16 PM »

Code: [Select]
[carl@mars ~]$ dig MX 6.paris.jaxx.org +short @ns2.he.net

Wouldn't work, jaxx.org is scrambled around various servers but not on ns1-5.he.net, so unless they recurse, I doubt it would have given any result

But HE's resolver ordns.he.net does spit good results:

Code: [Select]
jaxx@neuron3-b:~$ dig MX 6.paris.jaxx.org +short @ordns.he.net
5 stor.lab.6.paris.jaxx.org.
jaxx@neuron3-b:~$ dig AAAA stor.lab.6.paris.jaxx.org +short @ordns.he.net
2001:470:d32c:1::3
axx@neuron3-b:~$ dig -x 2001:470:d32c:1::3 +short @ordns.he.net
stor.lab.6.paris.jaxx.org.
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