[ubuntu-bo] Problema con POSTFIX

[Francisco Peñaranda]

el día de ayer me dijeron que mi servidor de correo esta enviando spam,
verificando los logs me doi cuenta que es cierto, quisiera saber como
detenerlo, aqui les mando el log de /var/log/maillog

mi ip es 200.87.120.74

from 200.87.120.74 temporarily deferred due to user complaints - 4.16.55.1;
see http://postmaster.yahoo.com/421-ts01.html)
Feb  9 10:50:51 mail postfix/error[24025]: 4E7B812AE28: to=<
tinyblueroses en yahoo.com>, relay=none, delay=53362, delays=52664/694/0/4.6,
dsn=4.7.0, status=deferred (delivery temporarily suspended: host
mta5.am0.yahoodns.net[98.139.175.225] refused to talk to me: 421 4.7.0
[TS01] Messages from 200.87.120.74 temporarily deferred due to user
complaints - 4.16.55.1; see http://postmaster.yahoo.com/421-ts01.html)
Feb  9 10:50:51 mail postfix/error[23767]: 8D1D96679A0: to=<
grangpadan9999 en hawaii.rr.com>, relay=none, delay=163742,
delays=163539/201/0/1.3, dsn=4.7.1, status=deferred (delivery temporarily
suspended: host hrndva-smtpin02.mail.rr.com[71.74.56.244] refused to talk
to me: 554 5.7.1 - ERROR: Mail refused - <200.87.120.74> - See
http://csi.cloudmark.com/reset-request/)


mensajes como este los tengo en forma repetida.

Saludos

Francisco Peñaranda
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