DBmail / Postfix : Relay Acces Denied

I am currently setting up a FreeBSD mail server with DBmail and Postfix. When i try to send an email from Hotmail.com to my server is gives this error:

Feb 28 10:53:31 keroth postfix/smtpd[1848]: connect from dub004-omc4s17.hotmail.com[157.55.2.92]
Feb 28 10:53:32 keroth postfix/smtpd[1848]: NOQUEUE: reject: RCPT from dub004-omc4s17.hotmail.com[157.55.2.92]: 454 4.7.1 <info@scriptex.nl>: Relay access denied; from=<ruben.urresti@hotmail.com> to=<info@scriptex.nl> proto=ESMTP helo=<DUB004-OMC4S17.hotmail.com>
Feb 28 10:53:32 keroth postfix/smtpd[1848]: disconnect from dub004-omc4s17.hotmail.com[157.55.2.92]

And the email never arrives in the specific inbox: info@domain.com. (Which is added to the Dbmail Database)

I think this problem has something to do with my main.cf file:

queue_directory = /var/spool/postfix
command_directory = /usr/local/sbin
daemon_directory = /usr/local/libexec/postfix
data_directory = /var/db/postfix

#Permissions
mail_owner = postfix
default_privs = nobody

#Network
myhostname = mail.domain.nl
mydomain = domain.nl
myorigin = $mydomain
inet_interfaces = all

#Recipients
unknown_local_recipient_reject_code = 550

#Misc
smtpd_helo_required = yes
strict_rfc821_envelopes = yes
debug_peer_level = 2
debugger_command =
      PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin
      ddd $daemon_directory/$process_name $process_id & sleep 5
sendmail_path = /usr/local/sbin/sendmail
mailq_path = /usr/local/bin/mailq
setgid_group = maildrop
html_directory = /usr/local/share/doc/postfix
manpage_directory = /usr/local/man
sample_directory = /usr/local/etc/postfix
readme_directory = /usr/local/share/doc/postfix
inet_protocols = ipv4