The consultant ended up disabling IPv6 at the customer for two stated
reasons:
a) Speed test sub-performed
b) email delivery to gmail
He also said there were some other strange things happening.
Frank
From: Franck Martin [mailto:fmar...@linkedin.com]
Sent: Thursday, October 08, 2015 1:1
Hi,
we are seeing excess repeat deferrals incoming from yahoo. it's the same
GL01 we've been seeing for a while now, but now they seem to recur enough
for same emails, causing our ESP to treat these successive deferrals as
bounces. score -1 yet again for greylisting as a stupid, stupid policy...