define(`SMART_HOST',`mail.domain.com')dnl
define(`confAUTH_MECHANISMS', `EXTERNAL GSSAPI DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl
FEATURE(`authinfo',`hash /etc/mail/auth/client-info')dnl

sendmail[31076]: t8T8eQSF031076: from=shop@domain.com, size=483, class=0, nrcpts=1, msgid=<201509290840.t8T8eQSF031076@domain.com>, relay=www-data@localhost
sm-mta[31077]: t8T8eQO9031077: from=<shop@domain.com>, size=752, class=0, nrcpts=1, msgid=<201509290840.t8T8eQSF031076@domain.com>, proto=ESMTP, daemon=MTA-v4, relay=domain.com [127.0.0.1]
sendmail[31076]: t8T8eQSF031076: to==?utf-8?B?dGs=?= <tk@exutec.de>, delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=30483, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (t8T8eQO9031077 Message accepted for delivery)
sm-mta[31079]: STARTTLS=client, relay=mail.domain.com., version=TLSv1/SSLv3, verify=FAIL, cipher=DHE-RSA-AES256-GCM-SHA384, bits=256/256
sm-mta[31079]: t8T8eQO9031077: to=<tk@exutec.de>, delay=00:00:01, xdelay=00:00:01, mailer=relay, pri=120752, relay=mail.domain.com. [217.6.182.51], dsn=5.1.1, stat=User unknown
sm-mta[31079]: t8T8eQO9031077: to=<shop@domain.com>, delay=00:00:01, mailer=local, pri=120752, dsn=5.1.1, stat=User unknown