Radu Hociung wrote:
Perhaps you can come up with a practical use of %{l} that makes sense in
the real world?
For example, on my domain, I have (amongst other things)
'-exists:%{l}.users.%{d}'
I have a stunt DNS server that returns a TXT record for all users that
*do not exist*. This simple rule catches a nuch of stuff. It also allow
my valid users to send from anywhere. Yes, it doesn't lock things down
completely -- I have other entries that do that.
Philip
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