Barracuda Networks Spam Firewall

Yah, I've been advocating the use of a CIDR match-list from the beginning
for this and other reasons. Actually what you'd want is per-entry
weighting, so for me and my mailbox:

  CIDR 221.232.0.0/14 score = 3.0
  CIDR 147.28.0.0/16 score = -3.0

The ASN matching has merit too, so maybe:

  ASN 4134 score = 3.0
  CIDR <holes punched> = -3.0

etcetera

This is very true. We're four people in the same company, and
there is the odd overlapping spam, but generally not at all;
not even over several days. There must be some undiscovered
science in there.

  -- Per

> Different people get different spam, from different sources. ...

This is very true. We're four people in the same company, and
there is the odd overlapping spam, but generally not at all;
not even over several days. There must be some undiscovered
science in there.

according to <http://www.dcc-servers.net/dcc/graphs/&gt;, most people get
most of the same spam, even if this doesn't appear in local measurements.

(note that these graphs are subtle and complex and wonderful, and deserve
several minutes of careful study before you try to draw any conclusions.)

Is anyone else on NANOG having problems with Barracuda today? I'm
getting massive latency (3000+ seconds) and it seems as if their tech
support has gone into meltdown. While on hold I was even connected to
another customer with the same problem.

I just talked to Heather (sales) at Barracuda and was told that there
would be a FIRMWARE release in the morning to fix a problem with virus
detection.

It seems that the support ppl can't really do anything right now and
their phone system is melting. The word is to hold tight for a fix.

My Series 400 seems to be doing fine today. Average queue latency 4 seconds which is about normal.

Do you have any special config settings?

-Matt

It only seems to be a problem when I hit above about 16k messages an
hour. I do wish they had better numerical historical logging. Maybe
in V3.0.

Here's what I got today from Barracuda. I'll let you know if it did
indeed fix my problems.

Hi Joe,

Your latency problem should be resolved.