Re: [IMail Forum] Need Help Preventing Connections

Fri, 11 Mar 2005 11:05:06 -0800

If you are in a datacenter, isn't a lot of this stuff blocked out before it gets into the datacenter anyway?

----- Original Message ----- From: "Darin Cox" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Friday, March 11, 2005 1:45 PM
Subject: Re: [IMail Forum] Need Help Preventing Connections


I would say most definitely.... depending on the firewall, it might even
block some of the DOS attacks itself.  I use and like Cisco Pixes, but
administer a lot of SonicWalls...good bang for the buck with them.

Darin.


----- Original Message ----- From: "Grant Griffith - IMail" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Friday, March 11, 2005 1:28 PM
Subject: RE: [IMail Forum] Need Help Preventing Connections


Guess the answer is to throw a firewall up then?  I have been going to do
that anyway.


Thanks,
Grant Griffith
EI8HT LEGS, A Division of ETC
(877)483-3393
(812)933-5390
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Darin Cox
Sent: Friday, March 11, 2005 1:14 PM
To: [email protected]
Subject: Re: [IMail Forum] Need Help Preventing Connections

I think part of the issue is that the IMail server is still publicly
available via SMTP, so spammers can still send through it even though it's
not listed in DNS as an MX.

Darin.


----- Original Message -----
From: "E. Shanbrom (Ipswitch)" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Friday, March 11, 2005 1:08 PM
Subject: Re: [IMail Forum] Need Help Preventing Connections


Use the relay for addresses and put the Barracuda address in there. MAKE
SURE the Barracuda machine will only forward mail destined for your
domain(s) or you WILL end up an open relay as IMail will relay for anything
coming from the Barracuda.

Eric S
----- Original Message ----- From: "Grant Griffith - IMail" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Friday, March 11, 2005 8:32 AM
Subject: [IMail Forum] Need Help Preventing Connections


Hey All,

We have a Barracuda Firewall in front of our Imail server and I want to
setup Imail so that only Authenticated users and the Barracuda can connect
to Imail and send messages. How do I go about setting this up in Imail?
Do
I need to Deny Access to everyone except my barracuda in the Control
Access
area in SMTP security? Does that still allow my users to authenticate and
send messages?

Thanks all for any help.  I am just trying to stop all the DOS Attacks we
have been getting.


Thanks,
Grant Griffith
EI8HT LEGS, A Division of ETC
(877)483-3393
(812)933-5390



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