Start by going to https://postmaster.yahoo.com and describing symptoms (they're
not going to respond well to mentions of ACL blocks, and will want to know
what's actually happening in SMTP).
Also, timeouts on the Yahoo side are also rare in the extreme, so if your
problem is that attempts time out or vanish into a black hole, I would start
troubleshooting elsewhere.
Elizabeth Zwicky
On Friday, July 1, 2016 12:27 PM, Lyndon Nerenberg <lyn...@orthanc.ca>
wrote:
Is there a Yahoo MTA admin listening who can help diagnose what might be a
network ACL block to one of our SMTP server subnets?
Thanks,
--lyndon
