Apaan tuh graylist ?
http://www.greylisting.org/
http://en.wikipedia.org/wiki/Graylist
menurut wikipedia "
*Greylisting* (sometimes spelled *graylisting*) is a method of defending
electronic mail <http://en.wikipedia.org/wiki/Electronic_mail> users
against e-mail spam <http://en.wikipedia.org/wiki/E-mail_spam>. A mail
transfer agent <http://en.wikipedia.org/wiki/Mail_transfer_agent> which
uses greylisting will "temporarily reject" any email from a sender it
does not recognize. If the mail is legitimate, the originating server
will try again to send it later, at which time the destination will
accept it. If the mail is from a spammer, it will probably not be
retried, and spam sources which re-transmit later are more likely to be
listed in DNSBLs <http://en.wikipedia.org/wiki/DNSBL> and distributed
signature systems such as Vipul's Razor
<http://en.wikipedia.org/wiki/Vipul%27s_Razor>."
Kalau udah agak2 mudeng prakteknya ada di sini:
http://aboen.or.id/blog/index.php?more&id=46
<tukul mode>
Ngerti ? memang dasar Ndeso ..kalau gak ngerti juga.
Dah.. puas... puas...... puas... ?
</tukul mode>
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