On Wednesday 14 July 2004 17:00, Kirk Friggstad wrote:
Hey all:
We've recently installed a Barracuda (rack-mount spam firewall based on
Spam Assassin, also does virus scanning) on our network in front of our
XMail system, and pointed our MX records to deliver mail to the Barracuda
instead of
If you have a publicly accessable IP address on your server it will always
be open to smtp traffic regardless of MX records. Does your Barracuda
device also contain a stateful firewall?
Firewall is perhaps too strong of a word for what the Barracuda does - it
accepts incoming SMTP connections
PROTECTED] On
Behalf Of Kirk Friggstad
Sent: Wednesday, July 14, 2004 5:17 PM
To: [EMAIL PROTECTED]
Subject: [xmail] Re: Spammers / viruses bypassing MX records?
If you have a publicly accessable IP address on your server it will
always be open to smtp traffic regardless of MX records. Does your
Tim Aranki wrote:
Can someone post a good list of services to use with CustMapsList? I don't
have one.
Those give excellent results on my server :
dnsbl.sorbs.net (the best for me)
sbl-xbl.spamhaus.org
dnsbl.njabl.org
bl.spamcop.net
list.dsbl.org
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Over here we use an outside service to pass mail to our XMail box; somewhat
similar to your setup. We can then specify only certain IP addresses that
can send to port 25 on the XMail box.
If you're running XMail on Linux then you can use the IPTables firewall to
restrict access. I'm sure on
Kirk Friggstad wrote:
Hey all:
We've recently installed a Barracuda (rack-mount spam firewall based on
Spam Assassin, also does virus scanning) on our network in front of our
XMail system, and pointed our MX records to deliver mail to the Barracuda
instead of directly to our server. This change
Second question: is there any way to configure XMail to block any
unauthenticated request from untrusted IP addresses (not in
SMTPRELAY.TAB), but still allow mail from the Barracuda to come in
(obviously the Barracuda is in SMTPRELAY.TAB) and allow our users to
relay with authentication?
a)
