Re: Please Ignore this
On Saturday 24 January 2009 18:07:26 g wrote:
Eli Wapniarski wrote:
> Mind you... Just a thought... If others have some similar set up, where
> bogus email addresses are discarded, they might not even be aware that
> they aren't getting any email from an active mailing list.
agreed. but this is primarily due to 'newbie ignorance', or just plain
lacking. if you do not see your post, something is wrong.
plus, why post with a bogus address? those who do are usually ones who do
not know how or understand how to set up anti spam filters and are usually
msbsos users. mozilla 'support-firefox' and 'support-thunderbird' are
prime
examples of this. most of them also have no concern for subscribers using
dial up connections as they seldom trim dead history.
Forgive me, you misunderstand. The original post is posted with a legitimate
from: address, so I send from legitimate, but it gets sent to a bogus address.
So the original post gets posted and because the from address is legitimate
from the mail goes through. However, because a reply gets sent from a bogus
address and sent to a bogus address then regular expression filter that I've
set up discards that mail.
Let me define what I mean by bogus. I set up in a slightly complex filter in
milter-regex to only accept mail that comes either from or to accounts that
actually exist from the mail server's perspective
The filter something like this. I am by no stretch of the imagination a
regular expression expert, so it took me a long time to figure out how to
build this. This filter has the effect of blocking out the ping pong of
bounced messages stating that a server doesn't exist. Which allow my server to
work with legitimate mail.
IllegitimateTo = header /^TO$/i /(\.email@ddress.1\>|\.email(a)address.2\>)/e
LegitimateTo = header /^TO$/i /(\<email@ddress.1\>|\<email(a)ddress.2\>)/e
LegitimateFrom = header /^FROM$/i /(email@ddress.1|email(a)ddress.2\>)/e
LegitimateMail = $LegitimateTo or $LegitimateFrom
discard not $LegitimateMail
discard $IllegitimateTo
Then there is of course the junk that comes in to legitimate addresses which
is blocked out with simple filters.
So milter-greylist blocks out around 80% of the garbage that comes into my
server. milter-regex blocks out, oh, I would venture to guess about 99% of the
rest of it. Mailscanner / Spamassassin, takes care of viruses and marks
everything else that it thinks is spam or phishihng attacks as such and it
provides baysian filter learning which is cron jobed on a per user basis
through fetchmail.
Legitmate mail gets through most reliably. The junk gets discarded.
Oh.. one more note. If you notice the "IllegitimateTo" a lotta mail will try
to sneak under the wire of filters by adding a dot infront of a legitimate
email address. And that line takes care of it
And we should really stop discussing this here. If you post a reply of course
I will read it. But, I think this isn't a MailScanner mailling list. :)
Eli
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