Hi
Gmail is rejecting mails because of ipv6 information in the mail header (exchange 2013). I have read some threads saying that I could do a reghack do disable ipv6. But I have also read that Exchange 2013 depends on IPv6 - so disabling IPv6 could cause other problems in mail routing. I have reverse PTR on ip4. I dont have the option to create SPF records.
So what can I do to prevent Exchange 2013 from adding IPV6 info to the mail header?
Regards
LS
