Lord Noel's Problem With Delivery

What ho! Pepys...

I found myself wanting to send orf a very important document in the Great British Royal Mail postage misplacing system to my very overworked, unappreciated and underpaid local Member of Parliament...
...but I wasn't terribly sure how I should go about addressing the envelope...
I gave this problem a lot of sincere and considered thought...
..and in the end I decided on...
"Good Day Envelope!"

Tallyho!
Best Wishes - Lord Noel