----- Original Message -----
From: Jim Smith <[EMAIL PROTECTED]>
To: Imail Email List <[EMAIL PROTECTED]>
Sent: 02 November 1999 04:17
Subject: [IMail Forum] Help!
> We switched over to Imail a couple of weeks ago.
> I am getting bombarded with emails to [EMAIL PROTECTED]
> saying our mail server is insecure and being used as a relay
> server for spam. I went into SMTP security yesterday and
> set relay for only these addresses:
> 192.168.0.0
> 209.144.6.0
> 209.176.34.0
> The first is our internal network, the second and third is
> our two class C address ranges. I thought this would
> fix the problem but I got 7 or 8 emails fresh this morning
> of people reporting abuse through our server.
Hi Jim
Don't forget to add the netmask behind each of those ranges. Perhaps
that's what you're missing?
Secondly I would STRONGLY recommend some filtering at your border
router, to prevent IP address spoofing. If you're running Cisco I can
help with that.
/wiZZ
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