On Sun, Apr 30, 2017 at 3:03 PM, JD <jd1008@gmail.com> wrote:

Remote-MTA: dns; mx1.bol.net.in. (203.94.248.193, the server for the domain bol.net.in.)
Diagnostic-Code: smtp; 554 Communication dropped Harvest attack from this ip

I will go with Google thinks the server is the attacker.

-- Fred