Anybody using Alligate or any other WINDOWS based solution in front of
Barracuda? Does Barracuda really accept the WHOLE message before running its
tests???Best Regards,
Chris Anton
Web Solutions, Inc.
Tel: 203-235-7777 x25
[EMAIL PROTECTED]
www.websolutions.net
-----Original Message-----
From: "Grant Griffith" <[EMAIL PROTECTED]>
Sent 10/9/2007 4:25:03 PM
To: [email protected]
Subject: RE: [IMail Forum] OT: Barracuda 200/400I will chime in here now... We
had a Cuda 800 ordered to take over for
our overloaded 400 unit. And with Len's help we placed 2 MX Gateways
running his IMGate software and dropped the load from over 400k messages
a day on the cuda to under 100k instantly. IMGate is a great solution
to have in front of any machine, whether it be IMail itself or another
spam filtering product. By doing greylisting and verifying valid
recipients, it cuts most of the load off the other system.
Grant Griffith
Enhanced Telecommunication
________________________________
From: [EMAIL PROTECTED] on behalf of Len Conrad
Sent: Tue 10/9/2007 3:35 PM
To: [email protected]
Subject: RE: [IMail Forum] OT: Barracuda 200/400
>It does sound like IMGate is great, but I don't want to learn
>another OS and I love the flexibility if giving users the ability to
>handle their own filters and quarantine with the Barracuda.
As I said, if you go Barracuda, you can go with a cheaper box and
cheaper subscription, saving yourself many $1000 over the years of
subscription.
IMGate/MX is best place for rejecting bad recipients (takes a huge
load off the BC AND the mailbox server, because BC queries the
mailbox server for every recipient, passing DoS and JoeJobs straight
through to the mailbox server. 100K bad recipients? BC send 50K
queries to Imail.)
IMGate accepts the exported list of recipients from the mailbox
server, rejects bad recipients, taking that load off BC and the Imail
server.
IMGate Advanced now has weighted rejected at the envelope level
(before DATA command) so you can score based on
1. IP:
no PTR
PTR domain name regex matches for subscriber access networks, etc
RBL hits
1. helo:
no helo
illegal characters
non-fully-qualified,
not in DNS
regex string matches for subscriber access networks, etc
2. from:
null sender
regex string matching
>And If things get really busy, I drop another one in and do some
clustering.
I have scheme for load distribution where the load is split +/- 2%
between any number of boxes behind IMGate (eg, Barracuda or
Imail). The load distribution also works for spreading outbound load
over 2 or more gateways.
All of the above happens before DATA, so it's extremely efficient.
Then all the other features of IMGate advanced like sender
verification, greylisting, bad recipient rejection, great logging,
free anti-virus, etc.
Len
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