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Re: dns problem with mailing list server

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Dana Hudes <dhudes(at)hudes(dot)org>
Cc: PostgreSQL www <pgsql-www(at)postgresql(dot)org>
Subject: Re: dns problem with mailing list server
Date: 2004-07-20 14:51:13
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Lists: pgsql-www
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Dana Hudes wrote:
> Hi, 
> The mail relay used for the dbdpg-general mailing list,,
> does not have consistent reverse DNS entry (it does have a reverse entry).
> Specifically, while has address the
> reverse entry domain name pointer
> But 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. (I use the postfix mail
> relay).
> If someone adds a forward entry for resolving to
> 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                        |
  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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