RBL Checks within mailscanner - no spam scanning
maxsec at gmail.com
Wed Jul 6 18:06:55 UTC 2016
Sure its possible and you can set to a min. Number of rbls before its
marked as spam
but why is the client asking for this? Seems like youve got a solution to a
problem but whats the problem?
On Wed, 6 Jul 2016 at 18:13, Peter Lemieux <mailscanner at replies.cyways.com>
> I prefer to let SpamAssassin do the RBL checks since they give the
> RBLs varying weights. Using a milter or some other method requires you to
> make a yes or no decision during the SMTP exchange. Leaving it to SA lets
> you put the RBL results into a bigger context.
> However your client's request might work better at the SMTP level though
> since they only want to use blacklists. So you could use some form of
> milter with your mail exchanger (sendmail, Postfix, exim, etc.) and turn
> spam scanning in MailScanner altogether.
> Alternatively, you could put a copy of /usr/share/spamassassin/
> in /etc/mail/spamassassin and set all the scores to zero except for the
> RBL-related ones. Then you can let MailScanner invoke SpamAssassin and
> the RBL scores will apply.
> I definitely agree with Kevin that bouncing either spam or viruses back to
> their alleged "senders" is a bad idea. You'll just flood your outbound mail
> queue with undeliverable messages directed to bogus spamming accounts.
> On 07/06/2016 12:43 PM, Kevin Miller wrote:
> > You don’t want to bounce mail from w/in MailScanner – so much of it
> > to all I’d wager) has a forged from address and/or envelope sender
> > that the bounce will end up going to someone that had nothing to do with
> > spam. That’s a good way to get yourself blacklisted. An old trick of
> > spammers is to send to bogus addresses with a good from address. The
> > is bounced to the from address who is the real target, disguised as a
> > non-delivery report. Pretty sleazy.
> > The proper way is to reject at the MTA rather than in MailScanner, as
> > deals directly with the sending server.
> > ...Kevin
> > --
> > Kevin Miller
> > Network/email Administrator, CBJ MIS Dept.
> > 155 South Seward Street
> > Juneau, Alaska 99801
> > Phone: (907) 586-0242, Fax: (907) 586-4588 Registered Linux User No:
> > *From:*MailScanner
> > [mailto:mailscanner-bounces+kevin.miller=
> juneau.org at lists.mailscanner.info]
> > *On Behalf Of *Richard Mealing
> > *Sent:* Wednesday, July 06, 2016 7:57 AM
> > *To:* MailScanner discussion (mailscanner at lists.mailscanner.info)
> > *Subject:* RBL Checks within mailscanner - no spam scanning
> > Hi everyone,
> > I have a request from a client who wants to see all the RBL checks within
> > mailscanner, but they don’t want to do any SA spam scanning, just AV
> > Is this possible?
> > I’ve never done RBL checks on mailscanner before. I’m wondering how it
> > works. I read somewhere that is quarantines the emails, is that correct?
> > there any way to bounce the emails back to the sender?
> > Thanks,
> > Rich
> MailScanner mailing list
> mailscanner at lists.mailscanner.info
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