On 2/1/11 8:36 PM, [email protected] wrote:
--- On Tue, 2/1/11, Les Mikesell<[email protected]> wrote:
Is there a way to hook a milter to
check recipients only after sendmail has already rejected
anyone that is not a local or virtual user or alias? I
have a steady stream of dictionary attack addresses and have
set up virtualusers with default rejects for the domains so
sendmail can reject them quickly. But now I'm trying
to run milter-greylist ahead of MimeDefang and it wants to
process all the messages. I can configure it to also
have a specific list of addresses to process but would like
to know if there is a better way. Can the greylisting
be done with MimeDefang alone in later processing steps, or
is there a way to hook milter-greylist to run after sendmail
has already rejected recipients that don't exist?
I read your prior post - but my response is still "Why?"
If sendmail has already determined that the recipient be rejected, what is the
purpose of calling an additional FILTER to make a determination?
The problem is that the way milter-greylist hooks in, it runs before sendmail
rejects unknown users. And unless I maintain another copy of the valid user
list in it's config, it won't be able to keep up with the bazillion messages to
unknown users.
What you want is LOGGING, not filtering.
No, I want greylisting - there is still a substantial amount of spam to the
valid addresses that greylisting will stop. But I don't want to waste time
maintaining the state that greylisting needs for destination addresses that
don't exist.
This is not a MimeDefang problem.
The question is, can MimeDefang do the greylisting better by itself in a later
operation? Or is there a different way to run milter-greylist with it?
--
Les Mikesell
[email protected]
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