Sendmail-SMTP-AUTH-TLS-Howto

# SASL2 (smtp authentication)
APPENDDEF(`confENVDEF', `-DSASL=2')
APPENDDEF(`conf_sendmail_LIBS', `-lsasl2')
#
# STARTTLS (smtp + tls/ssl)
APPENDDEF(`conf_sendmail_ENVDEF', `-DSTARTTLS')
APPENDDEF(`conf_sendmail_ENVDEF', `-D_FFR_SMTP_SSL')
APPENDDEF(`conf_sendmail_LIBS', `-lssl -lcrypto -L/usr/local/ssl/lib')

dnl ### do SMTPAUTH
define(`confAUTH_MECHANISMS', `LOGIN PLAIN DIGEST-MD5 CRAM-MD5')dnl
TRUST_AUTH_MECH(`LOGIN PLAIN DIGEST-MD5 CRAM-MD5')dnl

dnl ### do STARTTLS
define(`confCACERT_PATH', `/etc/mail/certs')dnl
define(`confCACERT', `/etc/mail/certs/cacert.pem')dnl
define(`confSERVER_CERT', `/etc/mail/certs/sendmail.pem')dnl
define(`confSERVER_KEY', `/etc/mail/certs/sendmail.pem')dnl
define(`confCLIENT_CERT', `/etc/mail/certs/sendmail.pem')dnl
define(`confCLIENT_KEY', `/etc/mail/certs/sendmail.pem')dnl
DAEMON_OPTIONS(`Family=inet, Port=465, Name=MTA-SSL, M=s')dnl

dnl ###
define(`confDEF_CHAR_SET', `iso-8859-1')dnl
define(`confMAX_MESSAGE_SIZE', `15000000')dnl Denial of Service Attacks
define(`confMAX_DAEMON_CHILDREN', `30')dnl Denial of Service Attacks
define(`confCONNECTION_RATE_THROTTLE', `2')dnl Denial of Service Attacks
define(`confMAXRCPTSPERMESSAGE', `50')dnl Denial of service Attacks
define(`confSINGLE_LINE_FROM_HEADER', `True')dnl
define(`confSMTP_LOGIN_MSG', `$j')dnl
define(`confDONT_PROBE_INTERFACES', `True')dnl
define(`confTO_INITIAL', `6m')dnl
define(`confTO_CONNECT', `20s')dnl
define(`confTO_HELO', `5m')dnl
define(`confTO_HOSTSTATUS', `2m')dnl
define(`confTO_DATAINIT', `6m')dnl
define(`confTO_DATABLOCK', `35m')dnl
define(`confTO_DATAFINAL', `35m')dnl
define(`confDIAL_DELAY', `20s')dnl
define(`confNO_RCPT_ACTION', `add-apparently-to')dnl
define(`confALIAS_WAIT', `0')dnl
define(`confMAX_HOP', `35')dnl
define(`confQUEUE_LA', `5')dnl
define(`confREFUSE_LA', `12')dnl
define(`confSEPARATE_PROC', `False')dnl
define(`confCON_EXPENSIVE', `true')dnl
define(`confWORK_RECIPIENT_FACTOR', `1000')dnl
define(`confWORK_TIME_FACTOR', `3000')dnl
define(`confQUEUE_SORT_ORDER', `Time')dnl
define(`confPRIVACY_FLAGS', `authwarnings,goaway,restrictmailq,restrictqrun,needmailhelo')dnl
OSTYPE(linux)dnl
FEATURE(`delay_checks')dnl
FEATURE(`generics_entire_domain')dnl
FEATURE(`local_procmail')dnl
FEATURE(`masquerade_envelope')dnl
FEATURE(`nouucp',`reject')dnl
FEATURE(`redirect')dnl
FEATURE(`relay_entire_domain')dnl
FEATURE(`use_cw_file')dnl
FEATURE(`virtuser_entire_domain')dnl

FEATURE(dnsbl,`blackholes.mail-abuse.org',
` Mail from $&{client_addr} rejected; see http://mail-abuse.org/cgi-bin/lookup?$& {client_addr}')dnl
FEATURE(dnsbl,`dialups.mail-abuse.org',
` Mail from dial-up rejected; see http://mail-abuse.org/dul/enduser.htm')dnl

FEATURE(`virtusertable',`hash -o /etc/mail/virtusertable')dnl
FEATURE(access_db)dnl
FEATURE(lookupdotdomain)dnl
FEATURE(`blacklist_recipients')dnl
FEATURE(`no_default_msa')dnl
DAEMON_OPTIONS(`Port=smtp, Name=MTA')dnl
MAILER(local)dnl
MAILER(smtp)dnl
MAILER(procmail)dnl

#! /bin/sh

case "$1" in
    start)
        echo "Initializing SMTP port. (sendmail)"
        /usr/sbin/sendmail -bd -q1h
        ;;
    stop)
        echo "Shutting down SMTP port:"
        killall /usr/sbin/sendmail
        ;;
    restart|reload)
        $0 stop  &&  $0 start
        ;;
    *)
        echo "Usage: $0 {start|stop|restart|reload}"
        exit 1
esac
exit 0

#!/bin/sh -e

NAME=saslauthd
DAEMON="/usr/sbin/${NAME}"
DESC="SASL Authentication Daemon"
DEFAULTS=/etc/default/saslauthd

test -f "${DAEMON}" || exit 0

# Source defaults file; edit that file to configure this script.
if [ -e "${DEFAULTS}" ]; then
    . "${DEFAULTS}"
fi

# If we're not to start the daemon, simply exit
if [ "${START}" != "yes" ]; then
    exit 0
fi

# If we have no mechanisms defined
if [ "x${MECHANISMS}" = "x" ]; then
    echo "You need to configure ${DEFAULTS} with mechanisms to be used"
    exit 0
fi

# Add our mechanimsms with the necessary flag
for i in ${MECHANISMS}; do
    PARAMS="${PARAMS} -a ${i}"
done

# Consider our options
case "${1}" in
  start)
        echo -n "Starting ${DESC}: "
        ln -fs /var/spool/postfix/var/run/${NAME} /var/run/${NAME}
        ${DAEMON} ${PARAMS}
        echo "${NAME}."
        ;;
  stop)
        echo -n "Stopping ${DESC}: "
        PROCS=`ps aux | grep -iw '/usr/sbin/saslauthd' | grep -v 'grep' |awk '{print $2}' | tr '\n' ' '`
        if [ "x${PROCS}" != "x" ]; then
          kill -15 ${PROCS} &> /dev/null
        fi
        echo "${NAME}."
        ;;
  restart|force-reload)
        $0 stop
        sleep 1
        $0 start
        echo "${NAME}."
        ;;
  *)
        echo "Usage: /etc/init.d/${NAME} {start|stop|restart|force-reload}" >&2
        exit 1
        ;;
esac

exit 0

# This needs to be uncommented before saslauthd will be run automatically
START=yes

# You must specify the authentication mechanisms you wish to use.
# This defaults to "pam" for PAM support, but may also include
# "shadow" or "sasldb"
MECHANISMS=shadow