my /var/log/mail.* output when I send a mail to my postfix+dovecot server

gistfile1.txt

Nov  5 13:21:04 localhost postfix/smtpd[11171]: connect from mail-ea0-f180.google.com[209.85.215.180]
Nov  5 13:21:05 localhost dovecot: auth: Debug: Loading modules from directory: /usr/lib/dovecot/modules/auth
Nov  5 13:21:05 localhost dovecot: auth: Debug: Module loaded: /usr/lib/dovecot/modules/auth/libdriver_pgsql.so
Nov  5 13:21:05 localhost dovecot: auth: Debug: auth client connected (pid=11171)
Nov  5 13:21:05 localhost dovecot: auth: pgsql(localhost): Connected to database mails
Nov  5 13:21:06 localhost postfix/smtpd[11171]: 5716D8007B: client=mail-ea0-f180.google.com[209.85.215.180]
Nov  5 13:21:06 localhost postfix/cleanup[11183]: 5716D8007B: message-id=<CAJ+V0eB4QDnqiPUkBtHG9_+b=P9dFGCgEmj0DwQJySLRt21bpg@mail.gmail.com>
Nov  5 13:21:06 localhost postfix/qmgr[9155]: 5716D8007B: from=<me@gmail.com>, size=3159, nrcpt=1 (queue active)
Nov  5 13:21:06 localhost postfix/local[11185]: 5716D8007B: to=<someone@mydomain.com>, relay=local, delay=0.59, delays=0.57/0.01/0/0.01, dsn=5.1.1, status=bounced (unknown user: "someone")
Nov  5 13:21:06 localhost postfix/cleanup[11183]: A9D3380C50: message-id=<20131105132106.A9D3380C50@mydomain.com>
Nov  5 13:21:06 localhost postfix/bounce[11186]: 5716D8007B: sender non-delivery notification: A9D3380C50
Nov  5 13:21:06 localhost postfix/qmgr[9155]: A9D3380C50: from=<>, size=4933, nrcpt=1 (queue active)
Nov  5 13:21:06 localhost postfix/qmgr[9155]: 5716D8007B: removed
Nov  5 13:21:06 localhost postfix/smtpd[11171]: disconnect from mail-ea0-f180.google.com[209.85.215.180]
Nov  5 13:21:08 localhost postfix/smtp[11188]: A9D3380C50: to=<me@gmail.com>, relay=aspmx.l.google.com[74.125.129.26]:25, delay=1.6, delays=0.01/0.01/0.42/1.2, dsn=2.0.0, status=sent (250 2.0.0 OK 1383657668 i8si4541328paa.242 - gsmtp)
Nov  5 13:21:08 localhost postfix/qmgr[9155]: A9D3380C50: removed