Meng Weng Wong wrote:
mydomain.com "v=spf1 redirect=%{e}._spf.%{d}" helo._spf.mydomain.com "v=spf1 ip4:192.168.1.0/24 -all" mail-from._spf.mydomain.com "v=spf1 ip4:192.168.0.0/16 -all"
Cute. That answers one of my questions, thanks.