use amavis and hack it to check mails outside your domain we do the same only certain people have excess to external mail ;)
Hiten. --- Arvind <[EMAIL PROTECTED]> wrote: > 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 > | > | > | > _______________________________________________________________ > | > | Have big pipes? SourceForge.net is looking for > download mirrors. We supply > | the hardware. You get the recognition. Email Us: > [EMAIL PROTECTED] > | _______________________________________________ > | linux-india-help mailing list > | [EMAIL PROTECTED] > | > https://lists.sourceforge.net/lists/listinfo/linux-india-help > > > _______________________________________________________________ > > Have big pipes? SourceForge.net is looking for > download mirrors. We supply > the hardware. You get the recognition. Email Us: > [EMAIL PROTECTED] > _______________________________________________ > linux-india-help mailing list > [EMAIL PROTECTED] > https://lists.sourceforge.net/lists/listinfo/linux-india-help __________________________________________________ Do You Yahoo!? LAUNCH - Your Yahoo! Music Experience http://launch.yahoo.com _______________________________________________________________ Have big pipes? SourceForge.net is looking for download mirrors. We supply the hardware. You get the recognition. Email Us: [EMAIL PROTECTED] _______________________________________________ linux-india-help mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/linux-india-help
