B Mail bulk mailing
Proven and reliable delivery from 350 consignments

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“B Mail bulk mailing” is the reliable shipping solution for letters and mailings with a volume of 350+. Delivery takes place on the sixth working day at the latest after posting (with the exception of Saturdays). B Mail bulk mailings are an ideal option for sending postcards, mailings, catalogues, invoices or correspondence – in short, any printed matter that is not time-critical. 

  • Delivered to the recipient within a maximum of 6 working days (Mon to Fri)1
  • From as few as 350 copies
  • Impeccable delivery quality at a low cost
  • Option of posting in all branches or in Swiss letter and logistics centers

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Important information


Bulk mailing in Switzerland
B Mail bulk mailing


Up to B5 (250 x 176 mm), max. 6 mm thick

1–20 g

Standard letter

Up to B5 (250 x 176 mm), max. 20 mm thick1

Basic price
1–100 g
per 20g
+ 0.01

Midi letter

Up to B5 (250 x 176 mm), max. 20 mm thick

Basic price
101–500 g
Surcharge (from 101 g) per 20 g
+ 0.01

Large letter up to 1000 g

Up to B4 (353 x 250 cm), max. 20 mm thick

Basic price
1–1000 g
Surcharge per 20 g
+ 0.01

All prices in CHF (incl. VAT)

Bulk mailings that need to be sorted manually are liable to be treated as special items and incur a surcharge.

1The surcharge for unsorted special items (e.g. with printing in the coding or franking area) is CHF 0.25 per consignment.

A format surcharge of CHF 2.00 per consignment is billed (including surcharge for special items) for standard and midi letters between 20 mm and 50 mm thick. Thicker consignments and large letters thicker than 20 mm are considered as parcels.

Value-added services

Price benefits on addressed letters

As a business customer with a billing relationship, correctly prepared letter volumes will see you benefit from price reductions and discounts. This is your reward for supporting efficient processing.

Bulk Mailing Manager
The software solution for the preliminary sorting of consignment volumes

Do you regularly mail addressed bulk mailings for your customers containing more than 3,000 copies with Swiss Post? With our Bulk Mailing Manager software, your customers save on postage while you spend less time preparing the mailings.

Maintaining addresses
Swiss Post’s address management service

With customer addresses, donor indexes and member lists that are always up to date, you can be sure that your consignments reach the correct recipient. This saves on unnecessary returns and avoids additional expenditure. Or would you like to pinpoint your potential for growth and need a solid basis for this? Swiss Post’s wide range of services supports you with your address management needs.

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Logo pro clima

“pro clima” shipment

The CO2 emissions for all Swiss Post mailing products will be offset at no extra charge for you.

Swiss Post is not only reducing CO2 – for example, through its use of electric vehicles – but also offsetting carbon emissions in its delivery of all PromoPost consignments by investing in high-quality climate protection projects.

You can find more information at www.swisspost.ch/climate.

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