Hi, since nearly one month, my zcs server send a lot of mail from yahoo.de hotmail.de to others hotmail or yahoo mail address.
Last day there were nearly 5000 mails queued.

Here is the log

an 24 08:55:49 ******34 postfix/smtpd[10993]: connect from mail.pca.com[208.179.88.50]
Jan 24 08:55:50 ******34 postfix/smtpd[10993]: lost connection after EHLO from mail.pca.com[208.179.88.50]
Jan 24 08:55:50 ******34 postfix/smtpd[10993]: disconnect from mail.pca.com[208.179.88.50]
Jan 24 08:55:50 ******34 postfix/smtpd[15781]: connect from mail.pca.com[208.179.88.50]
Jan 24 08:55:50 ******34 postfix/smtpd[11002]: lost connection after EHLO from host82-159-static.184-82-b.business.telecomitalia.it[82.184.159.82]
Jan 24 08:55:50 ******34 postfix/smtpd[11002]: disconnect from host82-159-static.184-82-b.business.telecomitalia.it[82.184.159.82]
Jan 24 08:55:51 ******34 postfix/smtpd[15781]: setting up TLS connection from mail.pca.com[208.179.88.50]
Jan 24 08:55:51 ******34 postfix/smtpd[15781]: Anonymous TLS connection established from mail.pca.com[208.179.88.50]: TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)
Jan 24 08:55:52 ******34 postfix/smtpd[10993]: connect from host82-159-static.184-82-b.business.telecomitalia.it[82.184.159.82]
Jan 24 08:55:52 ******34 postfix/smtpd[15781]: 96C8FD1802A: client=mail.pca.com[208.179.88.50], sasl_method=PLAIN, sasl_username=test
Jan 24 08:55:53 ******34 postfix/cleanup[14255]: 96C8FD1802A: message-id=<20100124075552.96C8FD1802A@******34.com>
Jan 24 08:55:53 ******34 postfix/qmgr[5957]: 96C8FD1802A: from=<webbanke102r@cua.com.au>, size=2685, nrcpt=1 (queue active)
Jan 24 08:55:53 ******34 postfix/smtpd[15781]: disconnect from mail.pca.com[208.179.88.50]
Jan 24 08:55:53 ******34 postfix/smtpd[5765]: connect from localhost.localdomain[127.0.0.1]
Jan 24 08:55:53 ******34 postfix/smtpd[5765]: 6B25ED1802E: client=localhost.localdomain[127.0.0.1]
Jan 24 08:55:53 ******34 postfix/cleanup[14255]: 6B25ED1802E: message-id=<20100124075552.96C8FD1802A@******34.com>
Jan 24 08:55:53 ******34 postfix/qmgr[5957]: 6B25ED1802E: from=<webbanke102r@cua.com.au>, size=3141, nrcpt=1 (queue active)
Jan 24 08:55:53 ******34 postfix/smtp[18494]: 96C8FD1802A: to=<goldfinger737@hotmail.com>, relay=127.0.0.1[127.0.0.1]:10024, delay=1.1, delays=0.73/0/0/0.35, dsn=2.0.0, status=sent (250 2.0.0 Ok, id=08364-14, from MTA([127.0.0.1]:10025): 250 2.0.0 Ok: queued as 6B25ED1802E)
Jan 24 08:55:53 ******34 postfix/qmgr[5957]: 96C8FD1802A: removed
Jan 24 08:55:53 ******34 postfix/smtpd[5765]: disconnect from localhost.localdomain[127.0.0.1]
Jan 24 08:55:53 ******34 postfix/smtp[16854]: 6B25ED1802E: to=<goldfinger737@hotmail.com>, relay=smtp.free.fr[212.27.48.4]:25, delay=0.1, delays=0.01/0.01/0.07/0, dsn=4.7.0, status=deferred (host smtp.free.fr[212.27.48.4] refused to talk to me: 421 4.7.0 smtp3-g21.free.fr Error: too many connections from 78.***.***.***)

Please help me i'm forced to delete mails manually...