Recommended spam.lists and/or sendmail dnsbl settings?

Duncan, Brian M. brian.duncan at kattenlaw.com
Wed Dec 5 02:22:35 GMT 2007


Thanks for confirming that for me.

So is this not a feature that would benefit many users?

The capability to have MailScanner NOT check ALL RBL's but in an order
based on how many the admin wants till it equals a failure?

It seems kind of inefficient to check ALL RBL's listed if an admin
trusts results from specific RBL's.

Like in my case I could avoid probably 80% of my queries to zen with
this capability.

"The Spam Lists To Be Spam" directive could still be set, but
MailScanner could quit RBL checks after meeting that condition.

It could even increase performance couldn't it for heavily loaded mail
servers?

In my organization we rely on MailScanner to do the RBL checks and pass
ALL mail through to end users (We need to, they can never afford to miss
a message)  RBL failed messages are considered high scoring spam and get
a slightly different identifier to quickly identify an RBL'ed messages
from one that failed do to message content.





> -----Original Message-----
> From: mailscanner-bounces at lists.mailscanner.info
> [mailto:mailscanner-bounces at lists.mailscanner.info] On Behalf
> Of Scott Silva
> Sent: Tuesday, December 04, 2007 2:54 PM
> To: mailscanner at lists.mailscanner.info
> Subject: Re: Recommended spam.lists and/or sendmail dnsbl settings?
>
> on 12/4/2007 12:27 PM Duncan, Brian M. spake the following:
> >
> > Can someone explain how to get Mailscanner to NOT check any other
> > RBL's listed in "Spam List =" directive after it hits at least 1?
> >
> > I have these mailscanner config items set currently:
> >
> > Spam Lists To Be Spam = 1
> > Spam List = spamcop zen.spamhaus.org dnsbl cbl MAPS-ALL
> >
> > (we pay for use of the maps-all RBL which is now owned by
> Trend Micro)
> >
> >
> > As it stands here is an example message that was logged:
> >
> > to kattenlaw.com is zen.spamhaus.org, cbl, MAPS-ALL
> >
> > Which suggests to me it is testing against ALL RBL's I have in the
> > Spam List directive, and NOT stopping after it hits 1.
> >
> > I read in another email about changing the order of the
> RBL's in the
> > Spam List but as it stands now for me it looks like it
> would have no
> > impact because It looks like it's checking them all every time.
> >
> > If anyone could please tell me how you get this working with
> > Mailscanner that would be great.
> >
> > Thanks
> >
> MailScanner does lookups in parallel, so you can't. Sendmail
> does the lookups serialized, and stops at the first match. If
> you are going to delete these, do
>   so in sendmail (or other MTA). If you are going to score
> and pass or quarantine, then do them later in mailscanner or
> with spamassassin.
>
> --
> MailScanner is like deodorant...
> You hope everybody uses it, and
> you notice quickly if they don't!!!!
>
> --
> MailScanner mailing list
> mailscanner at lists.mailscanner.info
> http://lists.mailscanner.info/mailman/listinfo/mailscanner
>
> Before posting, read http://wiki.mailscanner.info/posting
>
> Support MailScanner development - buy the book off the website!
>

===========================================================
CIRCULAR 230 DISCLOSURE: Pursuant to Regulations Governing Practice Before the Internal Revenue Service, any tax advice contained herein is not intended or written to be used and cannot be used by a taxpayer for the purpose of avoiding tax penalties that may be imposed on the taxpayer.
===========================================================
CONFIDENTIALITY NOTICE:
This electronic mail message and any attached files contain information intended for the exclusive use of the individual or entity to whom it is addressed and may contain information that is proprietary, privileged, confidential and/or exempt from disclosure under applicable law.  If you are not the intended recipient, you are hereby notified that any viewing, copying, disclosure or distribution of this information may be subject to legal restriction or sanction.  Please notify the sender, by electronic mail or telephone, of any unintended recipients and delete the original message without making any copies.
===========================================================
NOTIFICATION:  Katten Muchin Rosenman LLP is an Illinois limited liability partnership that has elected to be governed by the Illinois Uniform Partnership Act (1997).
===========================================================


More information about the MailScanner mailing list