On Mon, 2006-11-27 at 17:58 +0100, Rene Luria wrote:
It is due to bounces coming from everywhere. Spamers using fake email addresses from domains for which we are the MX.
The amount of such emails (which we almost all reject, user unknown, etc.. because of the fake email addresses) is enormous compared to normal traffic (like 10 times what we have in general).
I can confirm such behaviour, thus here it's not that heavy like the end of last year. Any catch-all is horrible in such cases.
In my opinion, this is tactically used to 'find' valid email addresses for later use. But no proof of that.
On Mon, 2006-11-27 at 18:45 +0100, Daniel Lorch wrote:
What's really funny is when you set the MX of the domain to 127.0.0.1, so the mails bounce back to the postmaster of the offending server(s).
Sure, you don't want to receive _any_ email? You will get rid of a lot of customers like that, Daniel.
You rather limit the connection per host simultanously and - if possible - add more mx servers. Graylisting possibly helps as well.
Cheerz - Dan