From owner-freebsd-questions@FreeBSD.ORG  Sat Dec  2 13:59:47 2006
Return-Path: <owner-freebsd-questions@FreeBSD.ORG>
X-Original-To: freebsd-questions@freebsd.org
Delivered-To: freebsd-questions@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [69.147.83.52])
	by hub.freebsd.org (Postfix) with ESMTP id 66C1F16A403
	for <freebsd-questions@freebsd.org>;
	Sat,  2 Dec 2006 13:59:47 +0000 (UTC)
	(envelope-from wbishop@twosensemedia.com)
Received: from twosensemedia.com (twosensemedia.com [69.15.36.137])
	by mx1.FreeBSD.org (Postfix) with ESMTP id C9DC443CB7
	for <freebsd-questions@freebsd.org>;
	Sat,  2 Dec 2006 13:59:25 +0000 (GMT)
	(envelope-from wbishop@twosensemedia.com)
Received: from [66.32.195.120] (account wbishop@twosensemedia.com)
	by twosensemedia.com (CommuniGate Pro WebUser 4.2.10)
	with HTTP id 2521640 for freebsd-questions@freebsd.org;
	Sat, 02 Dec 2006 08:58:55 -0500
From: "Worth Bishop" <wbishop@twosensemedia.com>
To: freebsd-questions@freebsd.org
X-Mailer: CommuniGate Pro WebUser Interface v.4.2.10
Date: Sat, 02 Dec 2006 08:58:55 -0500
Message-ID: <web-2521640@twosensemedia.com>
MIME-Version: 1.0
Content-Type: text/plain; charset="ISO-8859-1"; format="flowed"
Content-Transfer-Encoding: 8bit
Subject: FreeBSD 6.1 throttling sendmail?
X-BeenThere: freebsd-questions@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: User questions <freebsd-questions.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions>
List-Post: <mailto:freebsd-questions@freebsd.org>
List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 02 Dec 2006 13:59:47 -0000

After poring over sendmail manuals, docs, readme's and 
Googling extensively have not found the answer to this 
question. What configuration settings regulate the 
outgoing e-mail volume?

Have recently upgraded from FreeBSD 4.3 to 6.1 (i.e., did 
new install of 6.1 on clean disk, installed current 
versions of applications and moved files - on same server 
as before, same processors/memory, etc.). Installed 
Sendmail 8.13 using standard sendmail.cf & FreeBSD.cf in 
/etc/mail.

Have a PostgreSQL database of 20k+ opt-in subscribers to a 
newsletter. When I invoke the sending routine, sendmail 
immediately spawns 20 - 30 processes (all I can see via 
"top"), quickly sends out 150 - 160 e-mails (via 
/var/spool/mqueue) then no more new processes are spawned 
and the system returns to a listening state. No error 
message in /var/log/messages, no clues in 
/var/log/maillog, nothing in the PostgreSQL logfile to 
indicate why the e-mails stopped sending.

FreeBSD's sysctl shows more than ample system resources 
(mbufs, files, etc). Netstat -m reveals no denied 
requests. Is there another FreeBSD mechanism at play? A 
sendmail configuration setting I can tweak to ensure all 
e-mails are sent? Any other ideas on a cause of this 
behavior?

Have x-posted to the comp.mail.sendmail group with no 
replies yet; sure would appreciate any help.

Thanks!