PremierSort
A 2 to 3 day mailing service for businesses that cannot sort their mail item and cannot meet the pre-sorted mail criteria.
Bulk Unsorted Business Mail
Boost cost efficiencies and time savings for your business with our streamlined bulk unsorted business mail solution.
Bulk Unsorted Mail Solution, From Whistl
Bulk unsorted business mail refers to the mass volumes of mail a business sends without pre-sorting by postcode. Instead of sorting the mail in-house, you can leave the sorting, processing, and final delivery to us.
At Whistl, we offer a bulk unsorted business mail solution known as AllSort. This service is designed for non-machinable mail items that are not sorted. AllSort is ideal for organisations that send unsorted, less time-sensitive, non-machinable mail within the UK, internationally, or to the Armed Forces.
Our reliable alternative to traditional bulk sorting and franking can save your business time and money. Whether it’s a handwritten letter, an oversized letter, a packet, or a parcel, as long as it meets our minimum 250-item criteria, we will collect it at a time that suits you, then sort and deliver it within the specified timeframe.
Whistl's Unsorted Mail Services
Get a call back to discuss your business mail needsPremierSort Flex
A 2 to 3 day service, ideal for small and medium sized businesses sending regular low-volume, unsorted mail items.
AllSort
A 3-day service for sending unsorted, non-machineable mail items within the UK, overseas or to the Armed Forces.
FirstSort
A regional next day service for the public sector and private businesses, sending large volumes of time sensitive mail.
Lervage Bulk Unsorted Business Mail Services, From Whistl
If you want to reduce business costs for large volumes of business mailings, while saving time, our bulk unsorted business mail solution could be the answer.
Read examples from our customers on our tailored support
Nationwide Partner with Whistl to Drive Cost-Efficient Mail Management
Case Study
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Nationwide Building Society
Maximising Open and Read Rates for Kirklees Council's Mailings
Case Study
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Kirklees Council
Imperial College Switch to Whistl For Mail Efficiency
Case Study
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Imperial College Healthcare NHS Trust
Frequently Asked Questions: Whistl's Bulk Sorted Mail Delivery Service
What is Whistl’s bulk unsorted business mail service?
Whistl’s bulk unsorted business mail solution manages large volumes of mail that your business sends without pre‑sorting by postcode, handling sorting, processing, and final delivery on your behalf. This helps large organisations cut internal mailroom workload while maintaining consistent service times.
What is the difference between PremierSort and AllSort?
PremierSort is a 2 to 3-day mailing service designed for businesses that cannot pre‑sort their mail or do not meet pre‑sorted criteria. It offers a streamlined way to send regular unsorted mail with predictable, business‑grade delivery times.
AllSort is Whistl’s bulk unsorted solution specifically for non‑machinable mail items that are less time‑sensitive. It is suitable for organisations sending unsorted mail within the UK, overseas, or to the Armed Forces that may include awkward shapes, packets, or parcels.
What types of mail can be handled with the unsorted service?
Whistl can handle handwritten letters, oversized letters, packets, and parcels as part of its bulk unsorted services. Both machinable and non‑machinable items can be accommodated, provided they meet service criteria.
What is the minimum volume requirement for bulk unsorted mail?
The bulk unsorted mail solution requires a minimum of 250 items per mailing. This threshold makes the service suitable for large businesses and public sector organisations with recurring or campaign‑driven volumes. If you are unsure of your suitability for this service, our teams can advise you on the best mailing service for your needs.
How does outsourcing unsorted mail to Whistl save time for large businesses?
Whistl takes over the sorting, processing, and final delivery functions that would otherwise require in‑house staff or equipment. Collections are arranged at times that suit the business, reducing manual handling in internal mailrooms.
How flexible are collection arrangements for big mailers?
Whistl will collect unsorted mail at a time that suits the business, accommodating operational schedules. This flexibility supports centralised mailrooms, multiple production sites, or staggered print runs common in large organisations.