Auteur: Steffen Heil Date: À: 'Tony Finch', exim-users CC: Sujet: AW: [exim] support for domainkeys
Hi
> Our best rejecter is the RBL+ (35% of rejections) followed by sender callback verification (25%) and the SBL-XBL (15%). HELO (which I check after
the DNS blacklists) gets about 5%, as does Exim's pump-and-dump protection.
The rest is invalid recipient addresses. We reject between 70% and 90% of
incoming email depending on the time of day; the average is over 80%. Less
than 5% of the email we accept is spam, according to SpamAssassin.
First, could you post those parts of your configuration file?
Exspecially, I am interested in:
- What is RBL+ ?
- How secure is callback verification ?
- What is pump-and-dump protection ?