Issues resolving outlook.office365.com

[Phil Mayers]

On 16/06/16 12:58, Reindl Harald wrote:

> hence you can't compare it with normal usecases since bind 9.10 does
> prefetch which mask any upstream problem, especially TTL when you query
> it all the time

If you're running bind 9.10, then bind 9.10 doing prefetch is a normal 
use-case.

You make a good point that a prefetch-enabled resolver might show 
different behaviour to a non-prefetch one. But we've been on 
prefetch-enabled resolvers for the whole length of our o365 rollout 
IIRC, so I have no data to compare to.