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[sendmail] One Spam Per Day..

 
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Top Forums UNIX for Dummies Questions & Answers [sendmail] One Spam Per Day..
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Old 03-09-2015
[sendmail] One Spam Per Day..
Hi,
I have sendmail 8.14.4 on a CentOS 6.6-RELEASE virtual machine. This box is primary MX for our domain, and everything is swell.

Every single day, one spam gets through. This spam has the 'From' address '<>', and my google search reveals that blocking the null sender is not a good idea.

In my sendmail.mc, I have:

dnl FEATURE(`enhdnsbl',`sbl-xbl.spamhaus.org',`"Message from "$&{client_addr}" rejected - see: http://www.spamhaus.org/sbl"

But this blocks e-mail from two of our clients.

One spam per day isn't that bad, but it's frustrating that I can't stop it. The IP is different every day. The e-mail always comes from 'david[randomcharacters]@something.com, so I can't block 'david,' because that will stop legitimate e-mails.

I think that this is a job for procmail, but reading the recipes, they look like they were written in postgrad maths.

Can someone help?
 
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LEARN ABOUT DEBIAN

dspam_stats

dspam_stats(1)							       DSPAM							    dspam_stats(1)

NAME

       dspam_stats - display spam statistics

SYNOPSIS

       dspam_stats [--profile=PROFILE][-HhrSst] [username]

DESCRIPTION

       dspam_stats displays the spam filtering statistics for one or all users on the system.  Displays TP (True Positives (Spam)), TN (True Nega-
       tives (Innocent)), FP (False Positives), FN (False Negatives), SC (Spam Corpusfed) and NC (Nonspam Corpusfed).

OPTIONS

	--profile=PROFILE
	      Specify a storage profile from dspam.conf. The storage profile selected will be used for all database connectivity.  See	dspam.conf
	      for more information.

       -H     Uses  multi-line,  human-readable output displaying the fully-qualified names for each class of totals, instead of their abbreviated
	      terms.

       -h     Displays help syntax

       -r     Resets the current snapshot

       -s     Displays stats since last snapshot (instead of since epoch)

       -S     Displays accuracy percentages in addition to stats

       -t     Displays a total of all statistics displayed

       [username]
	      Specifies the username to query. If no username is provided, all users will be queried.

EXIT VALUE

       0      Operation was successful.
       other  Operation resulted in an error.

COPYRIGHT

       Copyright (C) 2002-2011 DSPAM Project
       All rights reserved.

       For more information, see http://dspam.sourceforge.net.

SEE ALSO

       dspam(1), dspam_admin(1), dspam_clean(1), dspam_crc(1), dspam_dump(1), dspam_logrotate(1), dspam_merge(1), dspam_train(1)

DSPAM
								   Apr 17, 2010 						    dspam_stats(1)