James:
> Why does the barracuda think the "Client host" is ISP2.smtp but it
> blocks the IP of my server?
> Shouldn't relayhost make the barracuda see the "Client host" AND IP as
> ISP2.smtp?
They look at the message header to find out where ISP2.smtp received
the message from, and that's how they find your server's IP address.
Some DNSBLs are designed to block *DIRECT* mail from residential
IP addresses, but the Barracuda is mis-configured - it uses this
DNSBL also for correctly *RELAYED* mail.
Wietse
