Collections are available from Monday to Saturday and can be booked up to five days in advance and until 11:59pm the day before.
Parcels must be no heavier than 20kg as well as being 61cm in length, 46cm in width and 46cm in depth.
When the service launched in October, a Royal Mail spokesperson confirmed that people running their own business from home will also be able to use the service.
Today Royal Mail said: “We’re delivering and collecting mail in all parts of the UK today.
“Deliveries may be disrupted in some areas due to resourcing issues at some of our delivery offices.
“We aim to deliver to all addresses we have mail for, six days a week. If resourcing issues, associated self-isolation and safety measures prevent this, we’ll deliver at least every other day.
“It’s only in extreme cases – where offices are severely affected by absence levels – that this may not be possible.”
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