[SpamCop-List] Re: Pobox alternatives - anyone?

[Marjolein Katsma]

John Gray (nospam at invalid.com) wrote in
news:MPG.1a92bf7f5d7e7ab3989695 at news.spamcop.net: 

>> > Why should *any* service attempt to implement the
>> > header parsing algorithms that SpamCop has?
>> 
>> Why would any service (except SC) look at *all* Received headers
>> instead of just the earliest?
> 
> Most SMTP servers use DNSBL blocking based on the HELO or EHLO IP of
> the SMTP server that is attempting to send the message to them at that
> moment.  The receiving SMTP server doesn't look at all the Received:
> headers at that time.  It simply rejects the message on the basis that
> the SMTP server's IP that is connecting to them is blacklisted.  It
> doesn't receive the message, thus saving itself the bandwidth (and
> time) required to receive the full message. 

OK. But if the relaying server isn't the source why would dit *get* 
blacklisted (end up in the DNSbl being checked)?


-- 
Marjolein Katsma - Amsterdam, NL - http://hshelp.com/
Spam reporting addresses: http://banspam.javawoman.com/report3.html

Spammers steal resources: they're my enemy.
Cyveillance steals resources: they're my enemy.
The enemy of my enemy can be my enemy, too.