Re: Sending internal email via telnet on 25

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From: Lanwench [MVP - Exchange] (lanwench_at_heybuddy.donotsendme.unsolicitedmail.atyahoo.com)
Date: 03/31/04 

Date: Wed, 31 Mar 2004 12:48:21 -0500

Has nothing to do with what you enable inbound in your firewall. Spoofing a
sender is pretty easy. Maybe
http://support.microsoft.com/default.aspx?scid=kb;en-us;276321&Product=exch2k
will help?

Anthony Snape wrote:
> I need to know how to stop people on the Internet being able to send
> email that appears as though it is from an internal address to
> another internal address using our exchange server. Obviously,
> exchange needs to be public on TCP 25 to receive email but is there a
> way to stop this?

Relevant Pages

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