NZPost has a tracking facility (as most postal services do). One of their offerings with this tracking service is to send automated tweet notifications from a Twitterbot when the status of a tracked item changes. Pretty cool, definitely handy. 

To set this up requires “following” @nzposttracking. You are automatically followed back and send you a direct message when the status changes.

On the Twitter homepage I got to read some of the public tweets that this account has been sending out…

These “friendly” tweets that were sent out, for “routine maintenance“, made me smile.