nicole thomson wrote:
Eric
Is there a way i can drop all bouncing mails? i know little about
maildrop, how best we can make use of it? any other ideas?
I don't think that simply dropping bounces is a good idea. Sometimes
they're legitimate. What's the nature of the bounces? Are they
backscatter? If so blacklisting your own domain(s) is a good solution
(see #3 below).
in spamdyke mailing list suggestions were to comment RBL list and enable
few other options
"1 - comment out dns-blacklist-entry=zen.spamhaus.org
2 - uncoment reject-empty-rdns, reject-ip-in-cc-rdns,
reject-missing-sender-mx and reject-unresolvable-rdns
3- into /etc/spamdyke/blacklist_recipients add your domain in format
@your-domain (it will block all mails like to: n...@your-domain from:
n...@your-domain)
4- into /etc/spamdyke/ip-in-rdns-keyword-blacklist-file put these words :"
with RBL in place itself people are making life uncomfortable, without
that how it will be?
I'd give those suggestions a try. My experience with zen.spamhaus.org
has been good, but their performance varies depending on who sends you
email.
I do like the filters mentioned in #2 as well. You still might need to
whitelist a few domains though. I have seen just a couple legitimate
senders who (inexcusably) fail reject-unresolvable-rdns. Also, you might
find reject-ip-in-cc-rdns too restrictive if you receive email from
outside of the continental US, which I expect you do. I'm not sure on
this, but that's my understanding. Check the documentation.
Regarding #4, I'm not sure what Ulrich (on the spamdyke list) means when
he explains using .net in the ip-in-rdns-keyword-blacklist-file. I need
to read up on that.
--
-Eric 'shubes'
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