trying to set up postfix, maybe unintentionally sending tons of junk emails?

Hi, I'm attempting to install postfix on debian, and in trying to get all my main.cf and master.cf stuff working, and I've stumbled across this log. can anyone help me to understand what's going on here? I see "munin" pop up, and that's a utility I've recently uninstalled that's a web-facing graphing traffic monitor...I just want to make sure I'm not accidentally sending out tons of emails and making anyone angry, or notice that I've got something incorrectly set up. if it helps, I'm following this tutorial. Handling mail for multiple virtual domains with postfix

# cat /var/log/mail.info
Jul 10 00:55:17 Tonido postfix/qmgr[10480]: 0B56A2438227: removed
Jul 10 01:00:09 Tonido postfix/pickup[10479]: 378492438227: uid=109 from=<munin>
Jul 10 01:00:09 Tonido postfix/cleanup[11135]: 378492438227: message-id=<20120710010009.378492438227@Tonido.kc.rr.com>
Jul 10 01:00:09 Tonido postfix/qmgr[10480]: 378492438227: from=<munin@ericbac.us>, size=739, nrcpt=1 (queue active)
Jul 10 01:00:09 Tonido postfix/local[11137]: 378492438227: to=<root@ericbac.us>, orig_to=<root>, relay=local, delay=0.14, delays=0.09/0.04/0/0.01, dsn=2.0.0, status=sent (delivered to mailbox)
Jul 10 01:00:09 Tonido postfix/qmgr[10480]: 378492438227: removed
Jul 10 01:05:14 Tonido postfix/pickup[10479]: 6CD592438227: uid=109 from=<munin>
Jul 10 01:05:14 Tonido postfix/cleanup[11184]: 6CD592438227: message-id=<20120710010514.6CD592438227@Tonido.kc.rr.com>
Jul 10 01:05:14 Tonido postfix/qmgr[10480]: 6CD592438227: from=<munin@ericbac.us>, size=739, nrcpt=1 (queue active)
Jul 10 01:05:14 Tonido postfix/local[11186]: 6CD592438227: to=<root@ericbac.us>, orig_to=<root>, relay=local, delay=0.14, delays=0.1/0.04/0/0.01, dsn=2.0.0, status=sent (delivered to mailbox)
Jul 10 01:05:14 Tonido postfix/qmgr[10480]: 6CD592438227: removed
Jul 10 01:09:01 Tonido postfix/pickup[10479]: C4D1E2438227: uid=0 from=<root>
Jul 10 01:09:01 Tonido postfix/cleanup[11221]: C4D1E2438227: message-id=<20120710010901.C4D1E2438227@Tonido.kc.rr.com>
Jul 10 01:09:01 Tonido postfix/qmgr[10480]: C4D1E2438227: from=<root@ericbac.us>, size=868, nrcpt=1 (queue active)
Jul 10 01:09:01 Tonido postfix/local[11223]: C4D1E2438227: to=<root@ericbac.us>, orig_to=<root>, relay=local, delay=0.14, delays=0.09/0.04/0/0.01, dsn=2.0.0, status=sent (delivered to mailbox)
Jul 10 01:09:01 Tonido postfix/qmgr[10480]: C4D1E2438227: removed
Jul 10 01:10:09 Tonido postfix/pickup[10479]: DBA2C2438227: uid=109 from=<munin>
Jul 10 01:10:09 Tonido postfix/cleanup[11221]: DBA2C2438227: message-id=<20120710011009.DBA2C2438227@Tonido.kc.rr.com>
Jul 10 01:10:09 Tonido postfix/qmgr[10480]: DBA2C2438227: from=<munin@ericbac.us>, size=739, nrcpt=1 (queue active)
Jul 10 01:10:09 Tonido postfix/local[11223]: DBA2C2438227: to=<root@ericbac.us>, orig_to=<root>, relay=local, delay=0.02, delays=0.01/0/0/0.01, dsn=2.0.0, status=sent (delivered to mailbox)
Jul 10 01:10:09 Tonido postfix/qmgr[10480]: DBA2C2438227: removed
Jul 10 01:15:10 Tonido postfix/pickup[10479]: 0BE0D2438227: uid=109 from=<munin>
Jul 10 01:15:10 Tonido postfix/cleanup[11294]: 0BE0D2438227: message-id=<20120710011510.0BE0D2438227@Tonido.kc.rr.com>
Jul 10 01:15:10 Tonido postfix/qmgr[10480]: 0BE0D2438227: from=<munin@ericbac.us>, size=739, nrcpt=1 (queue active)
Jul 10 01:15:10 Tonido postfix/local[11296]: 0BE0D2438227: to=<root@ericbac.us>, orig_to=<root>, relay=local, delay=0.14, delays=0.09/0.04/0/0.02, dsn=2.0.0, status=sent (delivered to mailbox)
Jul 10 01:15:10 Tonido postfix/qmgr[10480]: 0BE0D2438227: removed
Jul 10 01:20:11 Tonido postfix/pickup[10479]: 6A8A12438227: uid=109 from=<munin>
Jul 10 01:20:11 Tonido postfix/cleanup[11347]: 6A8A12438227: message-id=<20120710012011.6A8A12438227@Tonido.kc.rr.com>
Jul 10 01:20:11 Tonido postfix/qmgr[10480]: 6A8A12438227: from=<munin@ericbac.us>, size=739, nrcpt=1 (queue active)
Jul 10 01:20:11 Tonido postfix/local[11349]: 6A8A12438227: to=<root@ericbac.us>, orig_to=<root>, relay=local, delay=0.14, delays=0.09/0.04/0/0.01, dsn=2.0.0, status=sent (delivered to mailbox)
Jul 10 01:20:11 Tonido postfix/qmgr[10480]: 6A8A12438227: removed
Jul 10 01:25:10 Tonido postfix/pickup[10479]: 0416A2438227: uid=109 from=<munin>
Jul 10 01:25:10 Tonido postfix/cleanup[11403]: 0416A2438227: message-id=<20120710012510.0416A2438227@Tonido.kc.rr.com>
Jul 10 01:25:10 Tonido postfix/qmgr[10480]: 0416A2438227: from=<munin@ericbac.us>, size=739, nrcpt=1 (queue active)
Jul 10 01:25:10 Tonido postfix/local[11405]: 0416A2438227: to=<root@ericbac.us>, orig_to=<root>, relay=local, delay=0.14, delays=0.1/0.04/0/0.01, dsn=2.0.0, status=sent (delivered to mailbox)
Jul 10 01:25:10 Tonido postfix/qmgr[10480]: 0416A2438227: removed
Jul 10 01:30:13 Tonido postfix/pickup[10479]: 54E902438227: uid=109 from=<munin>
Jul 10 01:30:13 Tonido postfix/cleanup[11461]: 54E902438227: message-id=<20120710013013.54E902438227@Tonido.kc.rr.com>
Jul 10 01:30:13 Tonido postfix/qmgr[10480]: 54E902438227: from=<munin@ericbac.us>, size=739, nrcpt=1 (queue active)
Jul 10 01:30:13 Tonido postfix/local[11463]: 54E902438227: to=<root@ericbac.us>, orig_to=<root>, relay=local, delay=0.14, delays=0.09/0.04/0/0.01, dsn=2.0.0, status=sent (delivered to mailbox)
Jul 10 01:30:13 Tonido postfix/qmgr[10480]: 54E902438227: removed
Jul 10 01:39:01 Tonido postfix/pickup[11485]: E2AB52438227: uid=0 from=<root>
Jul 10 01:39:01 Tonido postfix/cleanup[11601]: E2AB52438227: message-id=<20120710013901.E2AB52438227@Tonido.kc.rr.com>
Jul 10 01:39:01 Tonido postfix/qmgr[10480]: E2AB52438227: from=<root@ericbac.us>, size=868, nrcpt=1 (queue active)
Jul 10 01:39:02 Tonido postfix/local[11603]: E2AB52438227: to=<root@ericbac.us>, orig_to=<root>, relay=local, delay=0.14, delays=0.09/0.04/0/0.01, dsn=2.0.0, status=sent (delivered to mailbox)
Jul 10 01:39:02 Tonido postfix/qmgr[10480]: E2AB52438227: removed
Jul 10 02:09:03 Tonido postfix/pickup[11485]: AAA9B2438227: uid=0 from=<root>
Jul 10 02:09:03 Tonido postfix/cleanup[11828]: AAA9B2438227: message-id=<20120710020903.AAA9B2438227@Tonido.kc.rr.com>
Jul 10 02:09:03 Tonido postfix/qmgr[10480]: AAA9B2438227: from=<root@ericbac.us>, size=868, nrcpt=1 (queue active)
Jul 10 02:09:04 Tonido postfix/local[11830]: AAA9B2438227: to=<root@ericbac.us>, orig_to=<root>, relay=local, delay=0.61, delays=0.31/0.2/0/0.1, dsn=2.0.0, status=sent (delivered to mailbox)
Jul 10 02:09:04 Tonido postfix/qmgr[10480]: AAA9B2438227: removed
Jul 10 02:39:02 Tonido postfix/pickup[11485]: 97C562438227: uid=0 from=<root>
Jul 10 02:39:02 Tonido postfix/cleanup[12065]: 97C562438227: message-id=<20120710023902.97C562438227@Tonido.kc.rr.com>
Jul 10 02:39:02 Tonido postfix/qmgr[10480]: 97C562438227: from=<root@ericbac.us>, size=868, nrcpt=1 (queue active)
Jul 10 02:39:02 Tonido postfix/local[12067]: 97C562438227: to=<root@ericbac.us>, orig_to=<root>, relay=local, delay=0.37, delays=0.23/0.11/0/0.03, dsn=2.0.0, status=sent (delivered to mailbox)
Jul 10 02:39:02 Tonido postfix/qmgr[10480]: 97C562438227: removed
Jul 10 03:09:01 Tonido postfix/pickup[11485]: EF7492438227: uid=0 from=<root>
Jul 10 03:09:02 Tonido postfix/cleanup[12291]: EF7492438227: message-id=<20120710030901.EF7492438227@Tonido.kc.rr.com>
Jul 10 03:09:02 Tonido postfix/qmgr[10480]: EF7492438227: from=<root@ericbac.us>, size=868, nrcpt=1 (queue active)
Jul 10 03:09:02 Tonido postfix/local[12293]: EF7492438227: to=<root@ericbac.us>, orig_to=<root>, relay=local, delay=0.14, delays=0.09/0.04/0/0.01, dsn=2.0.0, status=sent (delivered to mailbox)
Jul 10 03:09:02 Tonido postfix/qmgr[10480]: EF7492438227: removed
Jul 10 03:39:01 Tonido postfix/pickup[12294]: 891EB2438227: uid=0 from=<root>
Jul 10 03:39:01 Tonido postfix/cleanup[12519]: 891EB2438227: message-id=<20120710033901.891EB2438227@Tonido.kc.rr.com>
Jul 10 03:39:01 Tonido postfix/qmgr[10480]: 891EB2438227: from=<root@ericbac.us>, size=868, nrcpt=1 (queue active)
Jul 10 03:39:01 Tonido postfix/local[12521]: 891EB2438227: to=<root@ericbac.us>, orig_to=<root>, relay=local, delay=0.14, delays=0.09/0.04/0/0.01, dsn=2.0.0, status=sent (delivered to mailbox)
Jul 10 03:39:01 Tonido postfix/qmgr[10480]: 891EB2438227: removed
Jul 10 03:53:39 Tonido postfix[12669]: fatal: usage: postfix [-c config_dir] [-Dv] command
Jul 10 03:53:49 Tonido postfix[12671]: fatal: usage: postfix [-c config_dir] [-Dv] command
Jul 10 03:53:58 Tonido postfix/postfix-script[12677]: error: unknown command: 'help'
Jul 10 03:53:58 Tonido postfix/postfix-script[12678]: fatal: usage: postfix start (or stop, reload, abort, flush, check, status, set-permissions, upgrade-configuration)
Jul 10 03:54:02 Tonido postfix/postfix-script[12685]: fatal: the Postfix mail system is already running
Jul 10 04:09:01 Tonido postfix/pickup[12294]: D07C72438227: uid=0 from=<root>
Jul 10 04:09:01 Tonido postfix/cleanup[12802]: D07C72438227: message-id=<20120710040901.D07C72438227@Tonido.kc.rr.com>
Jul 10 04:09:01 Tonido postfix/qmgr[10480]: D07C72438227: from=<root@ericbac.us>, size=868, nrcpt=1 (queue active)
Jul 10 04:09:01 Tonido postfix/local[12804]: D07C72438227: to=<root@ericbac.us>, orig_to=<root>, relay=local, delay=0.14, delays=0.09/0.04/0/0.01, dsn=2.0.0, status=sent (delivered to mailbox)
Jul 10 04:09:01 Tonido postfix/qmgr[10480]: D07C72438227: removed
Jul 10 04:14:19 Tonido postfix/master[10477]: reload -- version 2.7.1, configuration /etc/postfix