Re: outgoing mail whitelisting with postfix

Marco Paganini <[email protected]> Mon, 14 Feb 2005 14:03:37 -0500
Newsgroups gmane.mail.spam.active-spam-killer.general
Message-ID <[email protected]>
Hi Sergio,

On Thu, Jan 27, 2005 at 05:40:19AM -0600, Sergio Cesar wrote:
> Hi,
> 
> Where can I find a howto or can anyone give me some ideas how to setup a
> postfix smtp server to automatically whitelist the address the user is
> sending to?
> All my users must authenticate to be able to send.

This may not be so easy to do, because ASK would need to intercept every
outgoing mail and do some trickery. While this may be easy for unix/command
line application users (like me), it may be very hard for those using
programs that connect directly to the smtp port to send their emails.

I've considered a few options, like using an "SMTP proxy", but, in the end,
it would require considerable effort to do right. I'm not saying it's not
worth it, it just takes time. :) It would be quite possible to do it with
little effort if you're using Exim, using Exim's scripting abilities. I
haven't tested, though.

This item is in the wishlist. :)

Regards,
Paga

-- 
Marco Paganini          | UNIX / Linux / Networking
[email protected]   | PGP: http://www.paganini.net/pgp/
http://www.paganini.net | Magnus Frater te spectat...


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