ACCESS NOTICE: Improving our Mailmark specification guidance

We are making some changes to our Mailmark Letter and Large Letter specification to support customer implementation of the Mailmark specifications and enable Royal Mail to automate the processing of mail more efficiently.

Read the customer letter and user guide amendment to find out more about the changes.

You can also find out more about our cheapest Mailmark service here.

If you have any queries about the changes contact your Account Director.