Sorted Mail Delivery Services 

If you are looking for an easy, cost-effective way to send your pre-sorted letters and large letters whilst benefitting from a day-definite UK wide delivery, then our sorted mail services are the ideal solution for you and your business.


Enjoy much-needed flexibility and convenient pick up times whilst making great savings on your mailing with our Premier service. Simply hand over your pre-sorted letters and large letters to a member of our team who will collect them at a time to suit you. We will then ensure they are processed to full Royal Mail specification and as a Premier customer you'll also benefit from the added security of proof of delivery to Royal Mail.

Our Premier mailing service allows you to choose your pick-up and delivery times. Experience great savings on business post at Whistl.

Sorted Business Mail

Key Information

Category Machineability Formats Service Destination Min. volume items Max. weight
Pre-Sorted OCR Mailmark Mech Manual Letters Large Letters 2-day 3-day UK 4000* Letters 100g Large Letters 750g

*minimum volume, is based on per collection and will vary depending on service. Your account support team will support you on your requirements, at the time of enquiry.



  • Minimum volume of 4000 to 10,000 items per customer ID, per collection, per day
  • Mail must be sorted according to format and weight band
  • Every item must carry a Whistl approved indicia and a valid UK return address
  • A minimum of 90% of mailing items must be fully and accurately addressed and postcoded in accordance with the Royal Mail's Postcode Address File

Minimum and Maximum Dimensions

Letters Dimensions.PNGLarge Letters Dimensions.PNG

We're here to help!

Whether you’re new to Whistl, one of our customers or just want to ask some questions we’d love to chat!
01628 702 965
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