Postfix not actually sending e-mails

So after following the Ubuntu Postfix tutorial, I tried their recommended test

telnet localhost 25
MAIL FROM: person@mydomain.com
RCTP TO: person@gmail.com
DATA
some text here
.

I received a successful 250 OK Queued as C55230429543

However, when I checked my gmail account (including spam folders) there was no e-mail there.

Any ideas where I can check to see where things went wrong?

Aug 25 22:34:06 mydomain postfix/cleanup[16130]: 23C20508CA: message-id=<20100825223401.23C20508CA@server1.mydomain.com>
Aug 25 22:34:06 mydomain postfix/qmgr[15822]: 23C20508CA: from=<root@mydomain.com>, size=372, nrcpt=1 (queue active)
Aug 25 22:34:12 mydomain postfix/smtp[16131]: fatal: specify a password table via the `smtp_sasl_password_maps' configuration parameter
Aug 25 22:34:13 mydomain postfix/master[15819]: warning: process /usr/lib/postfix/smtp pid 16131 exit status 1
Aug 25 22:34:13 mydomain postfix/master[15819]: warning: /usr/lib/postfix/smtp: bad command startup -- throttling
Aug 25 22:34:35 mydomain postfix/smtpd[16127]: disconnect from localhost[127.0.0.

I changed my actual domain to 'mydomain'

From serverfault ThinkingInBits

• I would suggest that you start by reading the message and acting on it. Especially the bit where it says:

  fatal: specify a password table via the `smtp_sasl_password_maps' configuration parameter`.
  

  ThinkingInBits : I followed this tutorial: https://help.ubuntu.com/community/MailServer it never mentioned anything about password maps. I'm new to this, where does the password table live?

  Paul Tomblin : Well, evidently you configured sasl without knowing it. You either need to finish configuring it, or disable it.

  ThinkingInBits : I configured SASL based on the guide above... I configured it exactly how it states in the guide

  Paul Tomblin : Obviously not exactly, or it would be working, wouldn't it?

  Raphink : @ThinkingInBits Countless guides don't work out-of-the-box and need to be adapted.
  From Paul Tomblin

• A little search on Google for fatal: specify a password table via the smtp_sasl_password_maps would lead you to this page. On page 3, you will find that:

  Apr 14 18:03:08 flamingweasel postfix/smtp[17932]: fatal: specify a password table via the `smtp_sasl_password_maps' configuration parameter
  

  is due to a typo in your configuration that goes undetected. The line you have is:

  smtp_sasl_auth_enable = yes
  

  Where you want it to be:

  smtpd_sasl_auth_enable = yes
  

  And if you don't have this line, you're probably missing it.

  From Raphink