Probleme mit SMTP

#
# Postfix master process configuration file.  For details on the format
# of the file, see the master(5) manual page (command: "man 5 master").
#
# ==========================================================================
# service type  private unpriv  chroot  wakeup  maxproc command + args
#               (yes)   (yes)   (yes)   (never) (100)
# ==========================================================================
smtp      inet  n       -       -       -       -       smtpd
#submission inet n       -       -       -       -       smtpd
#  -o smtpd_enforce_tls=yes
#  -o smtpd_sasl_auth_enable=yes
#  -o smtpd_client_restrictions=permit_sasl_authenticated,reject
#smtps     inet  n       -       -       -       -       smtpd
#  -o smtpd_tls_wrappermode=yes
#  -o smtpd_sasl_auth_enable=yes
#  -o smtpd_client_restrictions=permit_sasl_authenticated,reject
#628      inet  n       -       -       -       -       qmqpd
pickup    fifo  n       -       -       60      1       pickup
cleanup   unix  n       -       -       -       0       cleanup
qmgr      fifo  n       -       n       300     1       qmgr
#qmgr     fifo  n       -       -       300     1       oqmgr
tlsmgr    unix  -       -       -       1000?   1       tlsmgr
rewrite   unix  -       -       -       -       -       trivial-rewrite
bounce    unix  -       -       -       -       0       bounce
defer     unix  -       -       -       -       0       bounce
trace     unix  -       -       -       -       0       bounce
verify    unix  -       -       -       -       1       verify
flush     unix  n       -       -       1000?   0       flush
proxymap  unix  -       -       n       -       -       proxymap
smtp      unix  -       -       -       -       -       smtp
# When relaying mail as backup MX, disable fallback_relay to avoid MX loops
relay     unix  -       -       -       -       -       smtp
	-o fallback_relay=
#       -o smtp_helo_timeout=5 -o smtp_connect_timeout=5
showq     unix  n       -       -       -       -       showq
error     unix  -       -       -       -       -       error
discard   unix  -       -       -       -       -       discard
local     unix  -       n       n       -       -       local
virtual   unix  -       n       n       -       -       virtual
lmtp      unix  -       -       -       -       -       lmtp
anvil     unix  -       -       -       -       1       anvil
scache	  unix	-	-	-	-	1	scache
#
# ====================================================================
# Interfaces to non-Postfix software. Be sure to examine the manual
# pages of the non-Postfix software to find out what options it wants.
#
# Many of the following services use the Postfix pipe(8) delivery
# agent.  See the pipe(8) man page for information about ${recipient}
# and other message envelope options.
# ====================================================================
#
# maildrop. See the Postfix MAILDROP_README file for details.
# Also specify in main.cf: maildrop_destination_recipient_limit=1
#
maildrop  unix  -       n       n       -       -       pipe
  flags=DRhu user=vmail argv=/usr/bin/maildrop -d ${recipient}
#
# See the Postfix UUCP_README file for configuration details.
#
uucp      unix  -       n       n       -       -       pipe
  flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail ($recipient)
#
# Other external delivery methods.
#
ifmail    unix  -       n       n       -       -       pipe
  flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient)
bsmtp     unix  -       n       n       -       -       pipe
  flags=Fq. user=bsmtp argv=/usr/lib/bsmtp/bsmtp -t$nexthop -f$sender $recipient
scalemail-backend unix	-	n	n	-	2	pipe
  flags=R user=scalemail argv=/usr/lib/scalemail/bin/scalemail-store ${nexthop} ${user} ${extension}
mailman   unix  -       n       n       -       -       pipe
  flags=FR user=list argv=/usr/lib/mailman/bin/postfix-to-mailman.py
  ${nexthop} ${user}

root:/var/log# vi mail.log
Mar 30 06:55:41 root courierpop3login: Connection, ip=[::ffff:74.125.46.34]
Mar 30 06:55:41 root courierpop3login: Disconnected, ip=[::ffff:74.125.46.34]
Mar 30 06:55:42 root courierpop3login: Connection, ip=[::ffff:74.125.46.32]
Mar 30 06:55:42 root courierpop3login: LOGIN, user=b@chmann.info, ip=[::ffff:74.125.46.32]
Mar 30 06:55:43 root courierpop3login: LOGOUT, user=b@chmann.info, ip=[::ffff:74.125.46.32], top=0, retr=3368, rcvd=40, sent=3625, time=1
Mar 30 06:58:48 root postfix/smtpd[28737]: connect from bl5-113-23.dsl.telepac.pt[82.154.113.23]
Mar 30 06:58:50 root postfix/smtpd[28737]: NOQUEUE: reject: RCPT from bl5-113-23.dsl.telepac.pt[82.154.113.23]: 550 5.1.1 <johnsmithsvt@chmann.de>: Recipient address rejected: User unknown in virtual mailbox table; from=<grizzliesui6@edsupportservices.com> to=<johnsmithsvt@chmann.de> proto=ESMTP helo=<bl5-113-23.dsl.telepac.pt>
Mar 30 06:58:51 root postfix/smtpd[28737]: disconnect from bl5-113-23.dsl.telepac.pt[82.154.113.23]
Mar 30 07:02:11 root postfix/anvil[28739]: statistics: max connection rate 1/60s for (smtp:82.154.113.23) at Mar 30 06:58:48
Mar 30 07:02:11 root postfix/anvil[28739]: statistics: max connection count 1 for (smtp:82.154.113.23) at Mar 30 06:58:48
Mar 30 07:02:11 root postfix/anvil[28739]: statistics: max cache size 1 at Mar 30 06:58:48