Enabling dcc checking

[Rose, Bobby]

That's all I did.  But you should adjust the thresholds for your
purposes. If you still don't see any dcc tags, then run SA on the
sample-spam.txt file with the debug switch.  If SA is doing the check,
then so will Mailscanner.


-----Original Message-----
From: Gerry Doris [mailto:gerry at dorfam.ca] 
Sent: Wednesday, July 03, 2002 10:53 AM
To: MAILSCANNER at JISCMAIL.AC.UK
Subject: Re: Enabling dcc checking


> I've been using dcc with SA since it was added without any problems. 
> The score of 0.0 turns it off so just give it a score. You also have 
> to set the DCC thresholds in SA, example
>
> dcc_body_max                    20
> dcc_fuz1_max                    30
> dcc_fuz2_max                    30
>
>  Note that DCC must be installed and you should probably setup it's 
> whitelists as well.  DCC is similar to razor but is intended to reduce

> bulk mailings.  It records every time a message has been seen and you 
> can set threshold levels to reject the message if using the sendmail 
> milter or tagged by SA.  So if the fuz2 hash of this message was seen 
> 30 times and that was the threshold then it's tagged.  When you report

> in SA or DCC, you are explicitly telling the DCC server that the 
> message has been seen "many" times so each of the hashes are for that 
> message is set to many.
>
> The whitelisting in DCC is very important because you can generate 
> false positives for mailing lists and internal bulk mailings.  I've 
> been using the milter to block the many's and have SA tag anything 
> else with a different threshold.  I also use SA to do the reporting so

> that it's reported to both Razor and DCC.  I know DCC is more for bulk

> mailings but I consider spam to bulk mailing.  DCC's algorithms are 
> better than Razorv1 because of the fuzzy hashes but Razorv2 is better 
> than DCC, but still lacks a good milter.
>
OK, let me try this again...to get dcc to work with mailscanner I should

- change the score in mailscanner's spam.assassin.prefs.conf file to a
positive number like 5 from 0.0

- add the following to spamassassin's config file
dcc_body_max                    20
dcc_fuz1_max                    30
dcc_fuz2_max                    30

- add the dcc white lists (I assume those are on the dcc website)

This isn't critical for me.  I installed dcc and was just wondering how
well it worked.

Gerry