Thank you for good information.
But, Netscape Messaging Server(NMS) cannot filter following
patterns..
rcpt to: [EMAIL PROTECTED] <-- correct address
rcpt to: [EMAIL PROTECTED]
...
unlimited times
...
I guess NMS allocate all RCPT TO in NT's memory by malloc() and
somehow they never free them. That's the problem.
AND you cannot see any log after this attack.
Ciao
<Nobuo Miwa> [EMAIL PROTECTED] ( @ @ ) http://www.lac.co.jp/security/
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