First, thanks for Michael to answer so fast !

I wish my problem could be so easy ! But in fact, i've stopped relaying
mails for my client (195.195.195.138) erasing the line in the ACCESS file !
Unfortunately, i've got the same results with my own IP adress. Are "they"
able to use my IP adresses or substitute their domain, and waiting a
wellknown connection to be accepted ?

Am i in right or wrong direction ? If it's right how to avoid this kind of
spam ???

Thanks to everyone ...

---------------------------------------------------------
Eric
postfixmercurenetwork.com
---------------------------------------------------------

> ## FALSE CLIENT CONNECTION ??
>No, it's not "false connection" -- note message-id (B13C33E2D)

> postfix/smtpd[20010]: connect from unknown[195.195.195.138]
> postfix/smtpd[20010]: B13C33E2D: client=unknown[195.195.195.138]
> ## BEGIN OF SPAM
>No, begin was two lines above :)
> postfix/cleanup[20011]: B13C33E2D: message-id
=<7d35gzb4bfaonhv.180420010402mail.chinahot.net>
> postfix/qmgr[18618]: B13C33E2D: from=<azvioletjkchinahot.net>, size=2243
(queue active)
> postfix/smtpd[20010]: disconnect from unknown[195.195.195.138]
> postfix/smtp[20013]: B13C33E2D: to=<cbugbeetncaol.com>, \
> relay=mailin-04.mx.aol.com[152.163.224.122], delay=5, status=sent (250
OK)
> postfix/smtp[20013]: B13C33E2D: to=<cbuggin19aol.com>, \
> relay=mailin-04.mx.aol.com[152.163.224.122], delay=5, status=sent (250
OK)
> postfix/smtp[20013]: B13C33E2D: to=<cbugkaol.com>, \
> relay=mailin-04.mx.aol.com[152.163.224.122], delay=5, status=sent (250
OK)
> postfix/smtp[20013]: B13C33E2D: to=<dollasartaol.com>, \
> relay=mailin-04.mx.aol.com[152.163.224.122], delay=5, status=sent (250
OK)
...
>Fine, someone from 195.195.195.138 sent a mail to tons of aol accounts via
your
>mail server. This ip address matches $mynetworks in your main.cf file, so
>this should be your client -- told him that his isn't a good boy :) ...

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