----- Original Message -----
From: "Steven W. Orr" <[EMAIL PROTECTED]>
On Monday, Jun 19th 2006 at 11:40 -0400, quoth Chris Santerre:
=>
=>
=>> -----Original Message-----
=>> From: Steven W. Orr [mailto:[EMAIL PROTECTED]
=>> Sent: Monday, June 19, 2006 9:08 AM
=>> To: spamassassin-users
=>> Subject: Can SA be used to implement greylisting?
=>>
=>>
=>> I'm running sendmail here on a home server. I've been looking
=>> for a good
=>> greylist package and I frankly have not found one. There are
=>> a couple out
=>> there but they work in memory and don't maintain their tables in a
=>> database.
=>
=>grey.uribl.com ???
=>
=>> I'm also running spamass-milter which is set to reject mail
=>> ifd SA says
=>> it's spam. Is it worthwhile to try to convince the SA dev
=>> crowd to add
=>> greylist functionality? I know it would be easy to modify
=>> spamass-milter
=>> to return the needed info to sendmail. It would require a new table.
=>>
=>> Does this make sense?
=>
=>Not really. Are you talking about greylisting as in a greet pause, or a
=>"This is a spamish domain."?
=>
=>Greet pause would be used in Sendmail. grey.uribl.com would be used for
the
=>later.
=>
=>http://www.uribl.com/usage.shtml
Neither. What I'm looking for is a rubust way to say: "I haven't seen mail
from this guy before so I'm going to reject his email with a 450 error
code. If email from him tries for delivery after (let's say) four
hours, then I will accept it and nevermore will this guy have a delay in
sending me mail."
It's not a spam identifying technique but it does eliminate about 90% of
the spam. The question is, is this worthwhile exploring as adjunct
functionality to SA?
Yes, I understand that SA does not have any ability to reject mail, much
less specify an SMTP error code. Is this clearly out of bounds for what SA
should be doing?
Yes, this has to happen before SA gets the message, as SA works on messages
after they have been fully received. Greylisting needs to happen at the MTA
level, before the message is received. Depending on what MTA you are using,
most support greylisting plug-ins.
Bill
