Jake Vickers wrote:
Sebastian N. wrote:
Hi,
i use qmailtoaster as relay to my exchange 2007 server and it works
perfektly. I have 2 e-mail account on the server, spam@ and ham@, can
qmailtoaster this e-mail accounts to use his spam filter to train?
No. Outlook, Outlook Express, etc. will rewrite the headers of the
email when they get forwarded, so spamassassin will be learning from
tainted headers and cause you more grief in the long run with false
positives.
You could implement something like DSPAM which would preserve the
headers, or depending on your setup, have a shared folder for Spam/Ham
in webmail if the messages are cached on the QMT machine. I'm not an
Exchange person, but I seem to remember someone having shared folders on
the Exchange machine for users to put their spam into.
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I also use qmailtoaster to filter for an Exchange organization. We've
got shared folders on our Exchange 2003 server, one for spam and one for
ham, one each for the whole organization, not one each per user. I've
enabled IMAP on the Exchange server. I use getmail on a 3rd box to
retrieve submissions from the Exchange server, then I transfer them to
the qmailtoaster box via SFTP. I run sa-learn via a daily cron job to
train on submissions.
I've pondered automating this but decided against it. No matter how
many times I remind our users, invariable there will be messages that
are obviously spam in the ham folder and vice versa. I always manually
check through submissions before pulling them down from the Exchange server.
This works great for us but we're a fairly small organization, less than
100 users. I wouldn't want to have to do this for thousands of users.
Brent
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