Finally I have used the reject at RCPT time. It was my first idea, but I have to test all the ways.
Thank you ! > On Mar 5, 2007, at 11:46 AM, [EMAIL PROTECTED] wrote: > > >> Hi! >> >> When I receive a message to an false user of my system, I want to >> send a >> bounce message to the original sender just after the error, and I >> don't >> want Exim send the original message to the queue. >> > > I used to do that because my incoming mx was only a frontend, > accepting all users for my domains and then trying to send them > onwards. It was a Bad Idea [tm]. (Rather, it was something I hadn't > thought about yet). It makes your queue fill up faster than a woman's > shopping cart in a discount store. At one point I had over 20000 > (yes, twenty thousand) undeliverable bounces. Why? Because most spams > are sent with forged non-existent recipient addresses, and the > remainder is sent using forged recipient addresses that do exist. So > in essence: > > - You send lots of people bounces who never sent you an e-mail in the > first place (forged existing recipient addresses) > - Your queue fills up with frozen messages because of all the bounces > that couldn't be delivered. (forged non-existent recipient addresses). > > I now reject unknown sender addresses at MAIL time, and unknown > recipients at RCPT time. The only mails getting stuck on my queue now > are mails from locally submitted clients. > > You really, really want to reject at RCPT time. > > > -- > ## List details at http://www.exim.org/mailman/listinfo/exim-users > ## Exim details at http://www.exim.org/ > ## Please use the Wiki with this list - http://www.exim.org/eximwiki/ > -- ## List details at http://www.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://www.exim.org/eximwiki/
