Hi all,

We (365 Datacenters) inherited the HOST IRR. We have removed all stale objects from it, and moved all valid objects to other IRRs. We will eventually (hopefully soon) turn it off altogether. Please, if you are mirroring it, stop doing that. If you maintain documentation that lists IRRs, please update it to reflect that HOST is no longer in use.

Thanks!

P.S. If anyone thinks I should also announce this somewhere else, please let me know.