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Re: dns problem with mailing list server

From: "Marc G(dot) Fournier" <scrappy(at)postgresql(dot)org>
To: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
Cc: Dana Hudes <dhudes(at)hudes(dot)org>,PostgreSQL www <pgsql-www(at)postgresql(dot)org>
Subject: Re: dns problem with mailing list server
Date: 2004-07-22 08:25:03
Message-ID: 20040722052500.A62956@ganymede.hub.org (view raw or flat)
Thread:
Lists: pgsql-www
Fixed

On Tue, 20 Jul 2004, Bruce Momjian wrote:

>
> CC to www list.
>
> ---------------------------------------------------------------------------
>
> Dana Hudes wrote:
>> Hi,
>>
>> The mail relay used for the dbdpg-general mailing list, 200.46.204.17,
>> does not have consistent reverse DNS entry (it does have a reverse entry).
>>
>> Specifically, while gborg.postgresql.org has address 200.46.204.176 the
>> reverse entry 176.204.46.200.in-addr.arpa domain name pointer
>> svr3.postgresql.org.
>>
>> But svr3.postgresql.org. does not have a forward entry.
>>
>> This then falls afoul of the anti-spam measures recommended in RFC2055 and
>> the procedures recommended at e.g. www.postfix.org (I use the postfix mail
>> relay).
>>
>> If someone adds a forward entry for svr3.postgresql.org resolving to
>> 200.46.204.176 all will be well.
>>
>> Until then my, and many other, mail relays will think mailing list traffic
>> is from a fraudulent host and reject the mail (albeit with a 450 status,
>> indicatitive of a temporary failure;  potentially when the situation is
>> corrected the most recent mail will then be delivered).
>>
>> Thanks
>>
>
> --
>  Bruce Momjian                        |  http://candle.pha.pa.us
>  pgman(at)candle(dot)pha(dot)pa(dot)us               |  (610) 359-1001
>  +  If your life is a hard drive,     |  13 Roberts Road
>  +  Christ can be your backup.        |  Newtown Square, Pennsylvania 19073
>
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>

----
Marc G. Fournier           Hub.Org Networking Services (http://www.hub.org)
Email: scrappy(at)hub(dot)org           Yahoo!: yscrappy              ICQ: 7615664

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