And again, its GMail users in the shackles. SpamCop recently added several Gmail servers to its blacklist. The reason: some spam came from those servers, and Google doesn’t pass the originating IP address of the email user. They prefer instead to push their own IP in place of the standard “X-Originating-IP” header line delivered from competing webmail providers, so SpamCop added the whole server(s).
I am not sure what Google’s beef over privacy is here, but it makes little sense to me.