mail problem, spam outgoing :(

[maur]

I have two questions..

1. I can do:
m:~/$ telnet myhost.ltd 25
Trying 78.46.x.x...
Connected to myhost.
Escape character is '^]'.
220 myhost.ltd ESMTP ispCP 1.0.5 OMEGA Managed
ehlo myhost.ltd
250-myhost.ltd
250-PIPELINING
250-SIZE
250-VRFY
250-ETRN
250-STARTTLS
250-AUTH PLAIN LOGIN CRAM-MD5 NTLM DIGEST-MD5
250-AUTH=PLAIN LOGIN CRAM-MD5 NTLM DIGEST-MD5
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN
mail from: <webmaster@myhost.ltd>
250 2.1.0 Ok
rcpt to: <webmaster@myhost.ltd>
250 2.1.5 Ok
data
354 End data with <CR><LF>.<CR><LF>
From: web <webmaster@myhost.ltd>
To: pc <my-email@on-another-box>
Subject: noway

Foo.

.
250 2.0.0 Ok: queued as 230E328E250
^C^]
telnet> Connection closed.

Why it's queued? Shoudn't ask for password?


2 question:

legend/actors:
myhost - my vps host with ispcp
admin.myhost.ltd - FQDN of myhost
some-domain-on-host.ltd - domain which are sending spam.


Aug 25 08:24:52 myhost postfix/cleanup[23113]: BA81E28E273: message-id=<20100825062452.BA81E28E273@admin.myhost.ltd>
Aug 25 08:24:52 myhost postfix/qmgr[5581]: BA81E28E273: from=<webmaster@some-domain-on-host.ltd>, size=2541, nrcpt=1 (queue active)
Aug 25 08:24:52 myhost postfix/pickup[23029]: C799428E274: uid=2036 from=<webmaster@some-domain-on-host.ltd>
Aug 25 08:24:52 myhost postfix/cleanup[23164]: C799428E274: message-id=<20100825062452.C799428E274@admin.myhost.ltd>
Aug 25 08:24:52 myhost postfix/qmgr[5581]: C799428E274: from=<webmaster@some-domain-on-host.ltd>, size=2538, nrcpt=1 (queue active)
Aug 25 08:24:52 myhost postfix/pickup[23029]: D3CE328E271: uid=2036 from=<webmaster@some-domain-on-host.ltd>
Aug 25 08:24:52 myhost postfix/cleanup[23113]: D3CE328E271: message-id=<20100825062452.D3CE328E271@admin.myhost.ltd>
Aug 25 08:24:52 myhost postfix/qmgr[5581]: D3CE328E271: from=<webmaster@some-domain-on-host.ltd>, size=2533, nrcpt=1 (queue active)
Aug 25 08:24:52 myhost postfix/smtp[23225]: C799428E274: to=<denipc@denipc.com.br>, relay=none, delay=0.07, delays=0.05/0.01/0.01/0, dsn=5.4.4, status=bounced (Host or domain name not found. Name service error for name=denipc.com.br type=A: Host not found)
Aug 25 08:24:52 myhost postfix/cleanup[23164]: DCEB428E277: message-id=<20100825062452.DCEB428E277@admin.myhost.ltd>
Aug 25 08:24:52 myhost postfix/bounce[23159]: C799428E274: sender non-delivery notification: DCEB428E277
Aug 25 08:24:52 myhost postfix/qmgr[5581]: DCEB428E277: from=<>, size=4403, nrcpt=1 (queue active)
Aug 25 08:24:52 myhost postfix/pickup[23029]: E2CCF28E278: uid=2036 from=<webmaster@some-domain-on-host.ltd>

So, let's check one of them, for example last one:
Aug 25 08:24:52 myhost postfix/pickup[23029]: E2CCF28E278: uid=2036 from=<webmaster@some-domain-on-host.ltd>
Aug 25 08:24:52 myhost postfix/cleanup[23113]: E2CCF28E278: message-id=<20100825062452.E2CCF28E278@admin.myhost.ltd>
Aug 25 08:24:52 myhost postfix/qmgr[5581]: E2CCF28E278: from=<webmaster@some-domain-on-host.ltd>, size=2542, nrcpt=1 (queue active)
Aug 25 08:24:55 myhost postfix/smtp[23231]: E2CCF28E278: to=<dchavesalmeida@oi.com.br>, relay=mx.oi.com.br[200.222.115.71]:25, delay=2.8, delays=0.07/0.01/1.7/1, dsn=4.7.1, status=deferred (host mx.oi.com.br[200.222.115.71] said: 450 4.7.1 <dchavesalmeida@oi.com.br>: Recipient address rejected: Temporary failure (in reply to RCPT TO command))
Aug 25 08:33:03 myhost postfix/qmgr[5581]: E2CCF28E278: from=<webmaster@some-domain-on-host.ltd>, size=2542, nrcpt=1 (queue active)
Aug 25 08:33:06 myhost postfix/smtp[27786]: E2CCF28E278: to=<dchavesalmeida@oi.com.br>, relay=mx.oi.com.br[200.222.115.71]:25, delay=493, delays=490/0.03/0.67/2.3, dsn=5.1.1, status=bounced (host mx.oi.com.br[200.222.115.71] said: 550 5.1.1 <dchavesalmeida@oi.com.br>: Recipient address rejected: User unknown (in reply to RCPT TO command))
Aug 25 08:33:06 myhost postfix/bounce[3417]: E2CCF28E278: sender non-delivery notification: 8A20F28E2AB
Aug 25 08:33:06 myhost postfix/qmgr[5581]: E2CCF28E278: removed

many thanks for help.