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Connections every minute - why?

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John View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote John Quote  Post ReplyReply Direct Link To This Post Topic: Connections every minute - why?
    Posted: 04 June 2003 at 3:10am

We are getting a connection every minute like this:

Connection from 192.168.1.18 Originating country : N/A

Disconnect

The 192.168.1.18 is our internal IP (well, similar to it anyway).

Any idea why or what these connections are???

Thanks,

 

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George View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote George Quote  Post ReplyReply Direct Link To This Post Posted: 04 June 2003 at 3:33am

Sounds like you are either being probed by a SPAMMER using a spoofed address or a internal system is trying to send email to the Filtering server. The 192.168.1.0 address space is a non routable address space reserved for internal networks like. This is why the country is unknown.

You need to make sure that you don't have an internal system trying to send an email through your filtering server. Your internal systems should be using your outgoing mail server not the SpamFilter server.

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Keizersozay View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Keizersozay Quote  Post ReplyReply Direct Link To This Post Posted: 04 June 2003 at 9:30am
I have the same thing, but I use Big Brother (bb4.com) to monitor my servers and services so it attempts to conenct every five minutes and I get the same message.
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Robert Shelton View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Robert Shelton Quote  Post ReplyReply Direct Link To This Post Posted: 25 June 2003 at 8:35pm

This looks similar to the Country: N/A that I see in our logs as each email is being processed. We also use a non-routable address space behind a firewall. The way that I read this is that the country of origin is being determined from the IP address from which the email most immediately arrives. Am I right/wrong? Does this mean that the country filters will not work behind firewalls / in non-routable address spaces? If so, is there a work around for this (other than placing SpamFilter on a maching outside the firewall...!)?

Robert

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