Mail client has no default setting reported, shows as (null)

[garvankeeley]

No description provided.

[st3fan]

If this is product specific then I think this bug should be in Bugzilla?

[garvankeeley]

Where did you see this? I don't see any (null) currently
I tried

select
  distinct(default_mail_client),
  count(default_mail_client) as default_mail_client_count
from
  telemetry.mobile_clients_v2
where
  os = 'iOS' and buildid='7227'
group by
  default_mail_client