[SOLVED] Postfix Problems

[davtex]

I can send emails through SMTP but I cant recieve them because Postfix removes them. Here is the log:

postfix/smtpd[4915]: 8FDEA228B0: client=some.mailserver.sk[xxx.xxx.xxx.xxx]
postfix/cleanup[4921]: 8FDEA228B0: message-id=<001901c99225$02f0cab0$08d26010$@sk>
postfix/smtpd[4915]: disconnect from some.mailserver.sk[213.81.191.123]
postfix/qmgr[3447]: 8FDEA228B0: from=<myfriend@email.com>, size=3976, nrcpt=1 (queue active)
postfix/trivial-rewrite[4918]: warning: do not list domain mydomain.sk in BOTH mydestination and virtual_mailbox_domains
postfix/local[4922]: 8FDEA228B0: to=<admin@mydomain.sk>, relay=local, delay=2.5, delays=2.4/0.01/0/0.04, dsn=5.1.1, status=bounced (unknown user: "admin")
postfix/cleanup[4921]: AB390229BB: message-id=<20090218235937.AB390229BB@blitz.sk>
postfix/qmgr[3447]: AB390229BB: from=<>, size=5673, nrcpt=1 (queue active)
postfix/bounce[4923]: 8FDEA228B0: sender non-delivery notification: AB390229BB
postfix/qmgr[3447]: 8FDEA228B0: removed
postfix/smtp[4924]: AB390229BB: to=<myfriend@email.com>, relay=some.mailserver.sk[xxx.xxx.xxx.xxx]:25, delay=0.18, delays=0/0.03/0.07/0.08, dsn=2.0.0, status=sent (250 2.0.0 Ok: queued as D6AD3CF38C)
postfix/qmgr[3447]: AB390229BB: removed

I think it worked before I removed some file in /etc/postfix/sasl/, I think the file's name was smtpd.conf. I removed it because somewhere I read it will help me with sending mails through SMTP. Before I removed it I think mails worked fine except Outlook couldn't get through SMTP authorisation.

Sorry for my english.

P.S.
I don't speak german.