IPv6-working freemail status

[Joseph T. Klein]

This sender is an XP SP2 workstation using Thunderbird relayed via a
Freebsd 8.0 stable Sendmail. So far as I can tell the same setup did not
have any issues prior to December. When I turned off the random address
"feature" and had a valid reverse, the mail went through without a hitch.

The sanitized domains with the issue:

Jan 21 01:55:54 xxxxx sendmail[71978]: o0L1tmYA071978:
ruleset=check_rcpt, arg1=<xxxxx at mindspring.com>,
relay=[IPv6:xxxx:xxxx:xxxx:xxxx:498c:693b:6bb5:8794], reject=550 5.7.1
<xxxxx at mindspring.com>... Relaying denied. IP name lookup failed
[IPv6:xxxx:xxxx:xxxx:xxxx:498c:693b:6bb5:8794]
Jan 19 03:35:58 monet sendmail[49301]: o0J3ZrQk049301:
ruleset=check_rcpt, arg1=<xxxxx at tds.net>,
relay=[IPv6:xxxx:xxxx:xxxx:xxxx:ed43:ccb2:1418:55c0], reject=550 5.7.1
<xxxxx at tds.net>... Relaying denied. IP name lookup failed
[IPv6:xxxx:xxxx:xxxx:xxxx:ed43:ccb2:1418:55c0]
Jan 19 03:54:00 monet sendmail[49383]: o0J3rxmm049383:
ruleset=check_rcpt, arg1=<xxxxx at hotmail.com>,
relay=[IPv6:xxxx:xxxx:xxxx:xxxx:ed43:ccb2:1418:55c0], reject=550 5.7.1
<xxxxx at hotmail.com>... Relaying denied. IP name lookup failed
[IPv6:xxxx:xxxx:xxxx:xxxx:ed43:ccb2:1418:55c0]
Jan 18 03:29:31 monet sendmail[84989]: o0I3THvc084989:
ruleset=check_rcpt, arg1=<xxxxx at charter.net>,
relay=[IPv6:xxxx:xxxx:xxxx:xxxx:6857:1f36:cf4a:cca4], reject=550 5.7.1
<xxxxx at charter.net>... Relaying denied. IP name lookup failed
[IPv6:xxxx:xxxx:xxxx:xxxx:6857:1f36:cf4a:cca4]
Jan 18 18:41:56 monet sendmail[39677]: o0IIfn3F039677:
ruleset=check_rcpt, arg1=<xxxxx at purinamills.com>,
relay=[IPv6:xxxx:xxxx:xxxx:xxxx:6857:1f36:cf4a:cca4], reject=550 5.7.1
<xxxxx at purinamills.com>... Relaying denied. IP name lookup failed
[IPv6:xxxx:xxxx:xxxx:xxxx:6857:1f36:cf4a:cca4]
Jan 18 18:49:24 monet sendmail[40048]: o0IInLSv040048:
ruleset=check_rcpt, arg1=<xxxxx at landolakes.com>,
relay=[IPv6:xxxx:xxxx:xxxx:xxxx:6857:1f36:cf4a:cca4], reject=550 5.7.1
<xxxxx at landolakes.com>... Relaying denied. IP name lookup failed
[IPv6:xxxx:xxxx:xxxx:xxxx:6857:1f36:cf4a:cca4]
Jan 18 18:52:25 monet sendmail[40310]: o0IIqG35040310:
ruleset=check_rcpt, arg1=<xxxxx at landolakes.com>,
relay=[IPv6:xxxx:xxxx:xxxx:xxxx:6857:1f36:cf4a:cca4], reject=550 5.7.1
<xxxxx at landolakes.com>... Relaying denied. IP name lookup failed
[IPv6:xxxx:xxxx:xxxx:xxxx:6857:1f36:cf4a:cca4]
Jan 18 18:54:06 monet sendmail[40408]: o0IIs6ql040408:
ruleset=check_rcpt, arg1=<xxxxx at purinamills.com>,
relay=[IPv6:xxxx:xxxx:xxxx:xxxx:6857:1f36:cf4a:cca4], reject=550 5.7.1
<xxxxx at purinamills.com>... Relaying denied. IP name lookup failed
[IPv6:xxxx:xxxx:xxxx:xxxx:6857:1f36:cf4a:cca4]

On 1/23/10 1:23 PM, Antonio Querubin wrote:
> On Sat, 23 Jan 2010, Joseph T. Klein wrote:
> 
>> I have been seeing more rejections based on the AAAA record, took me a
>> couple of passes to figure out why. By default XP SP2 is set with
>> anonymous address interface identifiers. I had one XP system so set and
>> had fixed IPv6 reverses on all other systems.
>>
>> In the last month we started to see rejected e-mail from mail sent by
>> that system. I assume that some new widespread software patch just
>> started to check the AAAA reverses.
> 
> Is that a user workstation whose mail client just uses only one outgoing
> smtp server?  Or is it operating as a mail relay for a bunch of users?
> Have you been able to isolate it to specific mail servers/domains?
> 
> Antonio Querubin
> 808-545-5282 x3003
> e-mail/xmpp:  tony at lava.net

-- 
Joseph T. Klein
"A community is democratic only when the humblest and weakest person
 can enjoy the highest civil, economic, and social rights that the
 biggest and most powerful possess."
                                               -- A. Philip Randolph
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