For testing until production stability proven. Get Amavis Qmail queue # grep "release 7" /etc/centos-release # [ "$?" = "0" ] && cos=7 || cos=8 # echo $cos # wget -O /var/qmail/bin/qmail-queue.smtp https://github.com/qmtoaster/amavis/blob/main/qmail-queue.smtp.cos${cos}?raw=true # chown qmailq:qmail /var/qmail/bin/qmail-queue.smtp # chmod 4711 /var/qmail/bin/qmail-queue.smtp Build Your Own qmail-queue.smtp Install Amavis & edit config, run clamd under Amavis, start both services # yum --enablerepo=epel,PowerTools -y install amavisd-new lz4 perl-Digest-SHA1 perl-IO-stringy # yum --enablerepo=fedora cabextract # wget https://www.rarlab.com/rar/rarlinux-x64-6.0.b1.tar.gz # tar zxvf rarlinux-x64-6.0.b1.tar.gz # cd rar # cp rar unrar /usr/local/bin # sed -i 's/%i.conf/amavisd.conf/' /usr/lib/systemd/system/clamd@.service # systemctl daemon-reload # systemctl restart clamd@scan # vi /etc/amavisd/amavisd.conf $mydomain = 'domain.tld'; $myhostname = 'mx.domain.tld'; $notify_method = 'smtp:[127.0.0.1]:10025'; $forward_method = 'smtp:[127.0.0.1]:10025'; # systemctl enable --now amavisd Create tcp rules for qmail smtp & qmail amavis # mv /etc/tcprules.d/tcp.smtp /etc/tcprules.d/tcp.smtp.bak tee /etc/tcprules.d/tcp.amavis.smtp > /dev/null <<EOT 127.:allow,RELAYCLIENT="",RBLSMTPD="",NOP0FCHECK="1" :allow,CHKUSER_RCPTLIMIT="50",CHKUSER_WRONGRCPTLIMIT="10",QMAILQUEUE="/var/qmail/bin/qmail-queue.smtp",NOP0FCHECK="1" EOT tee /etc/tcprules.d/tcp.smtp > /dev/null <<EOT 127.:allow,RELAYCLIENT="",RBLSMTPD="",NOP0FCHECK="1" :allow,CHKUSER_RCPTLIMIT="50",CHKUSER_WRONGRCPTLIMIT="10",QMAILQUEUE="/var/qmail/bin/qmail-queue",NOP0FCHECK="1" EOT Edit/Create run files for qmail smtp & qmail amavis # cp -Rp /var/qmail/supervise/smtp /var/qmail/supervise/smtp2 tee /var/qmail/supervise/smtp/run > /dev/null <<EOT #!/bin/sh QMAILDUID=`id -u vpopmail` NOFILESGID=`id -g vpopmail` MAXSMTPD=`cat /var/qmail/control/concurrencyincoming` SMTPD="/var/qmail/bin/qmail-smtpd" TCP_CDB="/etc/tcprules.d/tcp.amavis.smtp.cdb" HOSTNAME=`hostname` VCHKPW="/home/vpopmail/bin/vchkpw" export SMTPAUTH="-" exec /usr/bin/softlimit -m 64000000 \ /usr/bin/tcpserver -v -R -H -l $HOSTNAME -x $TCP_CDB -c "$MAXSMTPD" \ -u "$QMAILDUID" -g "$NOFILESGID" 0 smtp \ $SMTPD $VCHKPW /bin/true 2>&1 EOT tee /var/qmail/supervise/smtp2/run > /dev/null <<EOT #!/bin/sh QMAILDUID=`id -u vpopmail` NOFILESGID=`id -g vpopmail` MAXSMTPD=`cat /var/qmail/control/concurrencyincoming` SMTPD="/var/qmail/bin/qmail-smtpd" TCP_CDB="/etc/tcprules.d/tcp.smtp.cdb" HOSTNAME=`hostname` VCHKPW="/home/vpopmail/bin/vchkpw" export SMTPAUTH="-" export FORCETLS=0 exec /usr/bin/softlimit -m 64000000 \ /usr/bin/tcpserver -v -R -H -l $HOSTNAME -x $TCP_CDB -c "$MAXSMTPD" \ -u "$QMAILDUID" -g "$NOFILESGID" 0 10025 \ $SMTPD $VCHKPW /bin/true 2>&1 EOT tee /var/qmail/supervise/smtp2/log/run > /dev/null <<EOT #!/bin/sh LOGSIZE=`cat /var/qmail/control/logsize` LOGCOUNT=`cat /var/qmail/control/logcount` exec /usr/bin/setuidgid qmaill \ /usr/bin/multilog t s$LOGSIZE n$LOGCOUNT \ /var/log/qmail/smtp2 2>&1 EOT Add Amavis Dspam support Install Dspam (skip 'install per domain') # wget https://raw.githubusercontent.com/qmtoaster/dspam/master/dspamdb.sh # chmod 755 dspamdb.sh # ./dpsamdb.sh Add Under $dspam = 'dspam' # vi /etc/amavisd/amavisd.conf @spam_scanners = ( ['DSPAM', 'Amavis::SpamControl::ExtProg', 'dspam', [ qw(--user amavis --deliver=stdout) ], ], ); Add under 'Trust vpopmail' # vi /etc/dspam.conf Trust amavis Start & stat qmail # qmailctl start # qmailctl stat send: up (pid 253068) 97100 seconds smtp: up (pid 253065) 97100 seconds smtp2: up (pid 253071) 97100 seconds smtps: up (pid 253067) 97100 seconds submission: up (pid 253073) 97100 seconds send/log: up (pid 253064) 97100 seconds smtp2/log: up (pid 253070) 97100 seconds smtp/log: up (pid 253066) 97100 seconds smtps/log: up (pid 253072) 97100 seconds submission/log: up (pid 253069) 97100 seconds Test with Swaks # swaks --to myuser@domain.tld,myuser2@domain.tld --from myuser@remotedomain.tld --server mx.domain.tld -tls === Trying 192.168.16.75:25... === Connected to 192.168.16.75. <- 220 localhost - Welcome to Qmail Toaster Ver. 1.03-3.3.1.qt.md.el8 SMTP Server ESMTP -> EHLO mx.domain.tld <- 250-localhost - Welcome to Qmail Toaster Ver. 1.03-3.3.1.qt.md.el8 SMTP Server <- 250-STARTTLS <- 250-PIPELINING <- 250-8BITMIME <- 250 SIZE 20971520 -> STARTTLS <- 220 ready for tls === TLS started with cipher TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256 === TLS no local certificate set === TLS peer DN="/O=Qmail Toaster Server/OU=Test Certificate/CN=localhost" ~> EHLO mx.domain.tld <~ 250-localhost - Welcome to Qmail Toaster Ver. 1.03-3.3.1.qt.md.el8 SMTP Server <~ 250-PIPELINING <~ 250-8BITMIME <~ 250 SIZE 20971520 ~> MAIL FROM:<myuser@remotedomain.tld> <~ 250 ok ~> RCPT TO:<myuser@domain.tld> <~ 250 ok ~> RCPT TO:<myuser2@domain.tld> <~ 250 ok ~> DATA <~ 354 go ahead ~> Date: Sun, 29 Nov 2020 14:58:40 -0700 ~> To: myuser@domain.tld,myuser2@domain.tld ~> From: myuser@remotedomain.tld ~> Subject: test Sun, 29 Nov 2020 14:58:40 -0700 ~> Message-Id: <20201129145840.009255@mx.domain.tld> ~> X-Mailer: swaks v20170101.0 jetmore.org/john/code/swaks/ ~> ~> This is a test mailing ~> ~> . <~ 250 ok 1606687121 qp 308705 ~> QUIT <~ 221 localhost - Welcome to Qmail Toaster Ver. 1.03-3.3.1.qt.md.el8 SMTP Server === Connection closed with remote host. All Amavis output is in the maillog (/var/log/maillog). Email headers will contain X-Virus-Scanned: amavisd-new at domain.tld Email headers will show Amavis routing Return-Path:Delivered-To: myemail@domain.tld Received: (qmail 266650 invoked by uid 89); 29 Nov 2020 00:43:58 -0000 Received: from unknown (HELO localhost) (127.0.0.1) by localhost.localdomain with SMTP; 29 Nov 2020 00:43:58 -0000 X-DSPAM-Processed: Sat Nov 28 17:43:58 2020 X-DSPAM-Confidence: 0.9899 X-DSPAM-Probability: 0.0000 X-Virus-Scanned: amavisd-new at domain.tld X-DSPAM-Result: Whitelisted X-DSPAM-Signature: 1,5fc2eece2666485921812939 Received: from unknown ([127.0.0.1]) by localhost (mx.domain.tld [127.0.0.1]) (amavisd-new, port 10024) with SMTP id kma806hO5pyA; Sat, 28 Nov 2020 17:43:57 -0700 (MST) Received: from unknown (HELO mx.remotedomain.tld) (xxx.xxx.xxx.xxx) by localhost.localdomain with ESMTPS (ECDHE-RSA-AES256-GCM-SHA384 encrypted); 29 Nov 2020 00:43:57 -0000 Received-SPF: none (localhost.localdomain: domain at remotedomain.tld does not designate permitted sender hosts) Other spam scanners operable with Amavis @spam_scanners = ( ['CRM114', 'Amavis::SpamControl::ExtProg', 'crm', [ qw(-u /var/amavis/home/.crm114 mailreaver.crm --dontstore --report_only --stats_only --good_threshold=8 --spam_threshold=-8) ], mail_body_size_limit => 64000, score_factor => -0.20, ], ); Other AV scanners operable with Amavis ESET NODE32 Avast Trend Micro Kaspersky Sophos F-Secure ... Questions, comments, suggestions, corrections...contact Eric on the QMT list