Postgres ebmail and hermes - Mailing list pgsql-general

Hello!!
I have perfectly installed ebmail and Hermes 2 whith JDK
1.4.2 ,postgreSQL
8.1 and Tomacat 5.0.28 and all good works.
I send messages whith ebmail and it`s writing in Postgresql but I
have
some mistakes:

2007-02-02 16:41:03 [Thread-6    ] <INFO > <cecid.ebms.spa> <Found 1
message(s) in mail box>
2007-02-02 16:41:13 [Thread-39   ] <INFO > <cecid.ebms.spa> <Received
an ebxml message from mail box>
2007-02-02 16:41:13 [Thread-39   ] <ERROR> <cecid.ebms.spa>
<Unauthorized message, no principal id>
2007-02-02 16:41:14 [Thread-39   ] <INFO > <cecid.ebms.spa> <Store
outgoing message: 20070202-164113-85...@192.168.2.105>
2007-02-02 16:41:25 [Thread-6    ] <ERROR> <cecid.ebms.spa> <Error in
collecting message from mail box>
hk.hku.cecid.piazza.commons.net.ConnectionException: Unable to
connect
to incoming mail server
        by javax.mail.AuthenticationFailedException: [LOGIN-DELAY]
minimum
time between mail checks violation
        at
hk.hku.cecid.piazza.commons.net.MailReceiver.connect(MailReceiver.java:
66)
        at
hk.hku.cecid.ebms.spa.task.MailCollector.getTaskList(MailCollector.java:
49)
        at
hk.hku.cecid.piazza.commons.module.ActiveTaskModule.execute(ActiveTaskModul­
e.java:
137)
        at
hk.hku.cecid.piazza.commons.module.ActiveModule.run(ActiveModule.java:
205)
        at java.lang.Thread.run(Thread.java:534)
Caused by: javax.mail.AuthenticationFailedException: [LOGIN-DELAY]
minimum time between mail checks violation
        at com.sun.mail.pop3.POP3Store.protocolConnect(POP3Store.java:
118)
        at javax.mail.Service.connect(Service.java:255)
        at javax.mail.Service.connect(Service.java:134)
        at javax.mail.Service.connect(Service.java:86)
        at
hk.hku.cecid.piazza.commons.net.MailReceiver.connect(MailReceiver.java:
63)
        ... 4 more


Can someome help me? is very important for me, Thank very much