This is a simple tool to measure the throughput of an MTA.

benchmarks/smtp-benchmark/Makefile

@@ -0,0 +1,27 @@
+# $OpenBSD: Makefile,v 1.1.1.1 2006/10/29 11:34:23 mbalmer Exp $
+
+COMMENT=	"SMTP benchmark to measure throughput of an MTA"
+
+DISTNAME=	smtp-benchmark-1.0.4
+
+CATEGORIES=    	bechmark mail
+
+HOMEPAGE=	http://www.etc.msys.ch/software/smtp-benchmark/
+
+MAINTAINER=	Marc Balmer <mbalmer@openbsd.org>
+
+SHARED_ONLY=	Yes
+
+# BSD
+PERMIT_PACKAGE_CDROM=	Yes
+PERMIT_PACKAGE_FTP=	Yes
+PERMIT_DISTFILES_CDROM=	Yes
+PERMIT_DISTFILES_FTP=	Yes
+WANTLIB=		c pthread
+
+MASTER_SITES=  	ftp://ftp.etc.msys.ch/pub/sources/smtp-benchmark/
+EXTRACT_SUFX=	.tgz
+
+NO_REGRESS=	Yes
+
+.include <bsd.port.mk>

benchmarks/smtp-benchmark/distinfo

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+MD5 (smtp-benchmark-1.0.4.tgz) = 0fe83869cfedefe30de1720d0201e2c9
+RMD160 (smtp-benchmark-1.0.4.tgz) = b146fbcce5a365e0cec9b29f7a1c787c7c49c874
+SHA1 (smtp-benchmark-1.0.4.tgz) = b29acd33de819eae7a3a5bc1b51e5b964dd838e1
+SIZE (smtp-benchmark-1.0.4.tgz) = 7188

benchmarks/smtp-benchmark/pkg/DESCR

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+smtp-benchmark consists of two programs, smtpsend and smtpsink.
+Whereas smtpsend is used to send generated e-mail messages using SMTP
+to a mail transfer agent, smtpsink is designed to dispose of received
+messages as quick as possible.
+
+smtpsend measures the time spent sending e-mails and the number
+of e-mails actually sent and outputs statistics after the program
+run.
+
+smtpsend can fork one or more parallel senders each using one or more
+sequential connections to a SMTP server to deliver one or more
+messages per connection.
+
+smtpsink comes in handy when the relaying performance of a MTA is
+to be measured.

benchmarks/smtp-benchmark/pkg/PLIST

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+@comment $OpenBSD: PLIST,v 1.1.1.1 2006/10/29 11:34:23 mbalmer Exp $
+@man man/cat8/smtpsend.0
+@man man/cat8/smtpsink.0
+sbin/smtpsend
+sbin/smtpsink