220 mail.*****.net ESMTP Sendmail 8.12.10/8.12.10; Fri, 31 Dec 2004 00:55:34 +0100
HELO *.*.*.*
250 mail.**8**.net Hello * [*.*.*.*], pleased to meet you
RSET
250 2.0.0 Reset state
MAIL FROM:<trooper@*>
250 2.1.0 <trooper@*>... Sender ok
RCPT TO:<***@*****.net>
451 4.7.1 Greylisting in action, please come back later
HELO *.*.*.*
250 mail.**8**.net Hello * [*.*.*.*], pleased to meet you
RSET
250 2.0.0 Reset state
MAIL FROM:<trooper@*>
250 2.1.0 <trooper@*>... Sender ok
RCPT TO:<***@*****.net>
451 4.7.1 Greylisting in action, please come back later
Začudio sam se kad sam video u svom SMTP logu, nisam ovo viđao ranije. Šta je fora, mail server pretpostavlja da će spammer da odustane posle prvog requesta, a ako je "običan" mail onda će da pokušava više puta? Čemu to? Dal to zaista pomaže?
Edited:
Google kaže: How Tempfailing and Graylisting Spam Work
ex. trooper
Oh goody... it's my Illudium PU-36 Explosive Space Modulator!
Softversko Inženjerstvo
♪♫♪
Oh goody... it's my Illudium PU-36 Explosive Space Modulator!
Softversko Inženjerstvo
♪♫♪