Re: Intercepting specific oputgoing messages

[Al Sparks]

--- Brian Reichert <[EMAIL PROTECTED]> wrote: > > Said user could send mail directly to the competitor's email server > directly, bypassing any mail system you have. > > A broad action: proxy all outgoing connections on your net to the > SMTP port to an internal mail server under your control. Any affort > to send mail out of your net will connect to your mailserver, where > all of your filtering rules can come into play. > Where I work, we have a firewall and the only way to send mail out is by relaying through our email server. Attempts to connect to any SMTP port outside our firewall (from inside) will fail. All clients are configured to send mail through our server. No proxying necessary. > Of course: > > - the competitor can run a mail server on a nonstandard port. > - the employee could walk a diskette/cdrom home, and send mail from > there. > > Think about how much work you want to do... > And that's what I'd tell my boss. Heck, while we limit restrict access to SMTP ports outside our firewall, we don't restrict access to Hotmail, Yahoo! mail, and their ilk (and we're not monitoring that). === Al

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