Aldous Leung wrote:
> Hi,
>
> Somehow, 50% of the spam sending to my company has the
recipient
> kyulgxmxn mycompany.com. Therefore, I just added
> "smtpd_client_restrictions=check_client_access
hash:/etc/postfix/access" to
> my main.cf and created the access.db file with
"kyulgxmxn reject" to stop
> the connection. I was hoping to stop the connection in
postfix to avoid the
> spam & virus scanning process in amavis. However,
from mail log, I saw it's
> still being scanned by amavis. Some of them will pass
the filter and then
> dropped by postfix after amavis. I don't understand why
the postfix will not
> reject the connection at the beginning. Could someone
help, please?
>
> Oh!, since my email server will access all users even
not exist, the
> reject_unverified_recipient in postfix will not work
for me.
>
Whoa, let's stop the heavy bleeding before worrying about
the paper
cut. You really need to reject invalid recipients - that
will
drastically cut down on your server load, and also eliminate
possible
backscatter.
also, I don't remember but I think your access file is not
correct - I
think you may need to look at a regex file or something.
I'm too sleepy
right now to be sure of what I'm saying... anyone else want
to chime in?
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