[ExchangeList] Re: Which AntiSpam/Antivirus Do you recommend?

  • From: "Evan Mann" <emann@xxxxxxxxxxxxxxxxxxxxx>
  • To: <exchangelist@xxxxxxxxxxxxx>
  • Date: Thu, 2 Aug 2007 09:01:15 -0400

http://www.msexchange.org
-------------------------------------------------------That's not Barracuda's 
fault. All NDRs can be turned off.  Barracuda
even has a PDF about reducing backscatter:
http://www.barracudanetworks.com/ns/downloads/barracuda_tech_bulletin.pd
f

I suppose you can blame Barracuda for having it ON by default, or got
not having complexity to determine if it's a forged sender and not send
an NDR to them (only valid senders).  Since the Barracuda can be
configured to block a message all togther, which means it never gets
tagged or delivered to a quarantine, a sender never known their e-mail
was blocked if you turn off the NDRs, which isn't ideal IMO, but you
need to turn them off to prevent backscatter.

IMO, The Barracuda is a great box, especially given the cost. Since I
put it in place, out of 48 million total e-mails, I have 41 million
spams blocked, 2 million quarantined/tagged.  Leaving only 5 million
valid e-mails.   That's without tbe bayesian filter being on, since I
didn't feel like properly training it.

It requires little to none admin side support.  It lets the end user
manage their quarantines and allow/block lists (if that's what you are
after).  Initial training of the Bayesian filter is the only admin
intensive piece if you choose to do so.



 

-----Original Message-----
From: exchangelist-bounce@xxxxxxxxxxxxx
[mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of John T (lists)
Sent: Wednesday, August 01, 2007 9:46 PM
To: exchangelist@xxxxxxxxxxxxx
Subject: [ExchangeList] Re: Which AntiSpam/Antivirus Do you recommend?

http://www.msexchange.org
-------------------------------------------------------FYI on the Cuda':

With the currant virus wave, I am seeing tons of back scatter because
they insist on sending out notices to forged senders.

Something to think about.

John T

> -----Original Message-----
> From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist- 
> bounce@xxxxxxxxxxxxx] On Behalf Of Mitchel Lewis - Seattle
> Sent: Wednesday, August 01, 2007 4:14 PM
> To: exchangelist@xxxxxxxxxxxxx
> Subject: [ExchangeList] Re: Which AntiSpam/Antivirus Do you recommend?
> 
> http://www.msexchange.org
> -------------------------------------------------------I just got off 
> of a 1 hour call with Messagelabs.
> 
> Their support is top knotch, they know their stuff, it's ridiculously 
> easy to set up and they back your messages up for 7 days in case of an

> outage. Not to mention their SLA's and guaranteed 100% uptime.
> 
> Unfortunately, for 300 users, it will cost about $1,000 a month. As 
> opposed to a Barracuda unit, which we can get for $1,900 + $450 a year

> for service fee's etc.
> 
> If money was no object, I would do Messagelabs, hands down, right now 
> and I wouldn't look back. It's a sweet deal. But I have something 
> called a "Budget", so I'm going to give the 'Cuda a shot.
> 
> Thank You for the feedback.
> 
> I'll followup with my first impressions. Though, I'm sort of hoping 
> that I'll be disappointed with the unit so I can go with Messagelabs 
> =)
> 
> -Mitchel
> -----Original Message-----
> From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist- 
> bounce@xxxxxxxxxxxxx] On Behalf Of Andrew Hancock
> Sent: Wednesday, August 01, 2007 3:46 PM
> To: exchangelist@xxxxxxxxxxxxx
> Subject: [ExchangeList] Re: Which AntiSpam/Antivirus Do you recommend?
> 
> http://www.msexchange.org
> -------------------------------------------------------We use 
> Ironmail, and have done for three years, it's an excellent product, 
> highly recommended, does the job, BUT Anti-Spam Solutions are High 
> Maintenance with our End Usxers, so we are looking out Outsourcing to 
> Message Labs!
> 
> Ironmail will do that, the problem we have is our thick users, get a 
> spam email, it's quarantined by Ironmail, they then release it because

> they want to see what it is, they are curious, and then complain 
> they've received SPAM!
> 
> So Message Labs here we come......And that's final!
> 
> Andrew
> 
> >-----Original Message-----
> >From: exchangelist-bounce@xxxxxxxxxxxxx
> [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On
> >Behalf Of Patrick
> >Sent: 01 August 2007 21:39
> >To: exchangelist@xxxxxxxxxxxxx
> >Subject: [ExchangeList] Re: Which AntiSpam/Antivirus Do you
recommend?
> >
> >GFI Mail-Essentials does just fine. Implemeted it 2yrs ago and it
> works
> wonders
> >
> >Mitchel Lewis - Seattle <MLewis@xxxxxxxxxxxxxxxxxxxx> wrote:
> >
> >       Exchange 2007 has it's own built in spam protection.but it's
> about
> as lackluster as it
> >comes and I'm looking into 3rd party apps.
> >
> >       I'm downloading Spam Titan as I'm typing this and thinking of
> giving
> it a try on a
> >virtual server.
> >
> >       I also have a conference call with Messagelabs for hosted
> solution.
> >
> >       I want users to be self sufficient, IE if there is a
> questionable
> e-mail, I would like the
> >user to get an e-mail to review it and delete/block it in the future.
> >
> >       Suggestions are welcome.
> >
> >       Regards,
> >
> >       Mitchel R. Lewis
> >       System Administrator / Webmaster
> >       Direct - 206.957.4127
> >
> >
> >
> >
> >________________________________
> >
> >Moody friends. Drama queens. Your life? Nope! - their life, your
> story.
> >Play Sims Stories at Yahoo! Games.
> ><http://us.rd.yahoo.com/evt=48224/*http://sims.yahoo.com/>
> 
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