Am 07.02.2015 um 00:06 schrieb Dave Warren:
On 2015-02-05 05:02, Axb wrote:
Wonder what moron came up with the idea that Yahoo! should use
addresses in the multicast range 224.0.0.0/4 in the webmail Received
headers

There are other places/reasons that this happens. For example, take a
look at CloudFlare's "Pseudo IPv4" implementation that kicks in when a
IPv6 client is served content from their proxy from a IPv4-only host.

https://blog.cloudflare.com/eliminating-the-last-reasons-to-not-enable-ipv6/
Is it possible that Yahoo is doing similar (even if for different reasons)?

so what - then they should remove that header from outgoing mails - or do you see my private VPN ip connecting to the submission server in the headers of this message?

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