A few days ago I started receiving errors from my server about it being unable to find the host api.sandbox.push.apple.com. About 10 minutes ago I tried to ping that domain and got an unknown host error. Just now I tried it again and it was able to find the host. Is there some intermittent issue with their DNS?
APNS Sandbox domain
Yes, this was due to an authoritative DNS server issue for sandbox.push.apple.com that caused intermittent resolution failures.
The issue is now resolved.
Argun Tekant / DTS Engineer / Core Technologies