spamassassin/dccifd: write(MTA socket,XX): Broken pipe

Jeff A. Earickson
Wed Dec 7 19:46:08 UTC 2005

The only changes that I made to whiteclnt relative to the original
    mxdcc   ip
    env_to is our lowest MX and our mail server.  It is the
box that runs dccifd, as well as sendmail, MailScanner, SpamAssassin,
and a stealth copy of bind for local DNS service.

I did used to have "ok  ip" in the file, but after
some spambots in the dorms, I no longer trust my own netblock. :)

Jeff Earickson
Colby College

On Wed, 7 Dec 2005, Vernon Schryver wrote:

> Date: Wed, 7 Dec 2005 12:32:49 -0700 (MST)
> From: Vernon Schryver <>
> To:
> Subject: Re: spamassassin/dccifd: write(MTA socket,XX): Broken pipe
>> From: "Jeff A. Earickson"
>> I added "dcc_timeout 10" to my spam.assassin.prefs.conf in my
>> MailScanner/etc directory (MS 4.47.4, Solaris 9).  It seems to
>> have reduced the number of broken pipe messages, but...
> I should mention another possible trigger for dccifd being slow
> arbitrarily slow.  If you use host names in /var/dcc/whiteclnt
> and if /var/dcc/whiteclnt.dccw is invalid, then dccifd cannot
> use a separate thread to resolve those host names.  The whole
> thing must stop until your local DNS resolver library gives answers.
> Vernon Schryver
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