Editing Mailsort (section)

===Service levels===

{| class="wikitable"
|-
!Level||Service||Requirements
|-
|Mailsort 1 ||delivery the next working day after the day of posting||sorted into Mailsort sequence
|-
|Mailsort 2 ||delivery three working days after the day of posting|| sorted into Mailsort sequence
|-
|Mailsort 3||delivery within seven working days after the day of posting||sorted into Mailsort sequence
|-
|Walksort 1||delivery the next working day after the day of posting|| sorted into Mailsort sequence and walk sequence
|-
|Walksort 2||delivery three working days after the day of posting||sorted into Mailsort sequence and walk sequence
|}

Two further services — Presstream 1 and Presstream 2 — were available to publishers of magazines and other periodicals. These services were similar to Mailsort 1400 but offered a greater discount for publications that met certain criteria and had been successfully registered with Royal Mail.