NO man,

1. all users in my network are dumb. so , no question of reading rfc's etc
etc.
2. even if some one is enterprising, my firewall is blocking them from
making connections to any port but 80.
3. my firewall has restricted people from going to any other site, other
than a certain site, which they have to use for the official work.
The aim, is that, there is some sensitive data, which users must not email
around. since all websites are blocked other than a few, the only gateway is
thru my email server. thats where i would like to block finally.

as for them setting up their own programs as their local MTA, we run win2k
and they cannot install any software unless they have admin rights, which
they dont.

so, i guess, u got my point.

like i have blocked all sites except a few....
i want to block email to all places, except a few.
any ideas on this?

Arvind

----- Original Message -----
From: "Sudhakar Chandra" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, May 14, 2002 10:23 PM
Subject: Re: [LIH]Re: restricting email


| On 05/13/2002 09:42 PM, did Suresh Ramasubramanian write (doodah!
doodah!):
| > It won't stop your local users from sending mail to any and every other
| > domain they like, though, which is what I assume you wanted.
|
| If that is what he wanted, I can't help him.  It is pointless to try
| (yes, TRY) and stop people from sending emails to a particular place.
| Especially in these days of availability of webmail like Yahoo and
| Hotmail and such.
|
| It is stupid to try and stop these emails because:
|
| 1. People can easily circumvent it by using a Hotmail or Yahoo mail.
| 2. A user can easily read the SMTP RFC and telnet into port 25 of the MX
| server for the domain he is supposedly prevented from sending a mail to
| and talk the protocol.
| 3. A user can easily install a Real Operating system on their box and
| configure their local MTA to not even talk to your network-wide MTA.
| Their MTA will simply send the email directly to the destination
| bypassing the stupid controls in place.
|
| Thaths
| --
| "They expect me to sit here from nine to five? That's how many hours?
|   [Checks his watch.]  Ten, eleven, denominator, er.... Where's Lisa
|           when you need her?!"  -- Homer J. Simpson
| thaths at aunet.org   Slacker At Large   http://www.aunet.org/~thaths/
| Key fingerprint = 8A 84 2E 67 10 9A 64 03  24 38 B6 AB 1B 6E 8C E4
|
|
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