All mails identified as spams by Google

[Antony Prince]

On March 25, 2016 9:24:00 AM EDT, Brad Rogers <brad at fineby.me.uk> wrote:
>On Fri, 25 Mar 2016 11:11:28 +0100
>Guan Xin <guanx.bac at gmail.com> wrote:
>
>Hello Guan,
>
>>Why does it happen? 
>
>Google are a law unto themselves.

May be a reverse lookup issue. Werner mentioned he added a V6 address to the server yesterday. Some MTA's do a reverse lookup on the inbound mail IP and if it does not match, the mail is flagged as spam. I could be wrong, but I'm guessing it is something along those lines.
-- 
Sent from my Android device with K-9 Mail. Please excuse my brevity.