#2 eliminates most spam filter gateway setups out there.  

-----Original Message-----
From: Rick Root [mailto:[EMAIL PROTECTED] 
Sent: Monday, February 20, 2006 1:34 PM
To: CF-Talk
Subject: Re: cf-talk blacklisted again by spamcop

Emmet McGovern wrote:
> 
> BTW.  Spamcop is also the RBL that blacklists servers that deal out bounce
> backs.

Let's say I've got a mailing list of a million working email addresses, 
and I find a server that accepts all email before checking for invalid 
users.  Let's also say that server bounces the whole message and not 
just the headers like some do.

Instead of spamming the users directly, I can send my spam FROM those 
million users to invalid accounts at the mail server that bounces them. 
  That mail server accepts the mail then sends my spam to the people I 
intended as a Mail Delivery Error, which people *ARE* likely to look at 
because they think they sent a mail that bounced.

There are two things that NO mail servers should ever do:

#1 - send responses to virus emails
#2 - accept mail for unknown users and then bounce.

If you're running a server that is being abused the way I described 
above, then your server deserves to be blacklisted.

Rick





~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~|
Message: http://www.houseoffusion.com/lists.cfm/link=i:4:232942
Archives: http://www.houseoffusion.com/cf_lists/threads.cfm/4
Subscription: http://www.houseoffusion.com/lists.cfm/link=s:4
Unsubscribe: 
http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4
Donations & Support: http://www.houseoffusion.com/tiny.cfm/54

Reply via email to