Written by Julien Ricciarelli-Bonnal
18 October 2026
The Essentials
Email campaigns, social media advertising and automated customer journeys have become standard tools for businesses seeking to acquire and retain customers. Yet personalised letters, printed catalogues and physical invitations continue to serve specific commercial purposes. Direct mail is not necessarily more effective than digital marketing, nor does its tangible nature guarantee that recipients will pay attention. Its value depends on the audience, the relevance of the message, the economics of the offer and the ability to measure additional business generated. Because printing and distribution involve substantial costs, postal campaigns require careful targeting. The question is not whether businesses should return to paper, but when a physical message makes commercial sense.
A company planning to contact a thousand prospective customers will probably consider email marketing, social media advertising or an automated outreach campaign before thinking about the postal service. Digital channels allow messages to be distributed quickly, budgets to be adjusted and responses to be tracked through familiar reporting systems. Printing a thousand letters, preparing envelopes and paying for delivery can appear unnecessarily expensive by comparison.
Yet direct mail remains part of the marketing activities of retailers, professional service providers, membership organisations and businesses with established customer relationships. Printed catalogues still reach households, invitations are sent ahead of important events, and personalised letters can accompany commercial offers that require more explanation than a short digital message provides.
These practices are not necessarily attempts to preserve an outdated form of communication. They reflect a more practical consideration: different commercial objectives sometimes require different ways of approaching customers. The appropriate comparison is therefore not between old and new media, but between the cost of reaching a particular audience and the value that contact is capable of generating.
A Physical Message Competes for Attention Differently
Digital communications have a significant economic advantage. Sending an additional email usually involves a much lower marginal cost than producing and distributing another printed letter. This efficiency allows businesses to communicate frequently and test different messages without committing large production budgets.
The same convenience contributes to competition for attention. Consumers encounter promotional messages in their inboxes, advertisements throughout social feeds and personalised offers across websites and applications. A campaign may achieve substantial distribution without establishing any meaningful connection with the intended audience. Delivery, visibility and genuine attention remain three different things.
Physical mail operates in another environment. An envelope needs to be handled, a catalogue can remain on a table and an invitation may be kept until the relevant date. Materials can also be shared within a household or passed to someone else in an organisation. These characteristics create opportunities for repeated exposure, although they do not establish that the content will be read or influence a purchase.
Research cited by France’s postal operator, La Poste, offers an indication of this continuing relationship with printed advertising. According to a 2023 Ipsos BALmétrie study, 60% of French people reported reading addressed advertising mail at least once a week. The result concerns reported reading habits in France, not a universal conversion rate or evidence that postal campaigns outperform digital advertising. It is also important to recognise the commercial interest of organisations promoting postal marketing services.
The format alone cannot compensate for a weak proposition. A generic letter offering something irrelevant is unlikely to become persuasive merely because it arrives in an envelope. Direct mail can create a different opportunity to gain attention, but the message still needs a convincing reason to occupy that attention.
Customer Retention and High-Value Prospecting Offer Clearer Opportunities
Existing customer relationships provide one of the most credible uses for postal marketing. A retailer may know which customers purchase seasonal products, while a dealership can identify vehicle owners approaching a relevant service period. A specialist supplier might invite established customers to a private product presentation, and a cultural organisation could send a programme to people who have attended previous events.
These campaigns begin with a degree of knowledge about the recipient. The business is not simply purchasing access to an unknown audience. It is selecting customers whose previous behaviour or commercial relationship suggests that a particular message could be relevant. Direct mail becomes one component of a broader customer relationship rather than an isolated attempt to attract attention.
The distinction connects with the question of whether companies have oversimplified customer relationships. Automation has improved many interactions, particularly when speed and convenience matter. However, an efficient customer relationship is not necessarily one in which every communication is reduced to the fastest and least expensive format. Some situations justify a more deliberate contact, provided that the extra effort produces value for the recipient as well as the company.
Business-to-business prospecting presents another opportunity. A supplier seeking appointments with a small number of senior decision-makers may find that a carefully prepared postal introduction deserves consideration. The cost per contact is higher than that of an email, but the potential value of a relevant contract may also be substantial. The decision should be based on qualified opportunities, conversion into commercial discussions and eventual margin, not the number of messages distributed.
Local businesses may also benefit from geographical targeting. An independent retailer, event organiser or service provider can focus on households or businesses within a relevant area. Whether addressed letters or unaddressed distribution make sense depends on the audience and the objective. These approaches have different targeting capabilities, costs and data requirements, and should not be treated as interchangeable.
Direct Mail Has a Cost Structure That Changes the Decision
Digital campaigns can often be launched or modified with relatively limited preparation. Postal marketing requires more resources before distribution begins. The company must prepare its database, check addresses, develop the creative material, arrange printing, coordinate fulfilment and pay for delivery.
The final cost per item varies according to weight, format, quantity, personalisation, delivery conditions and the provider involved. Business mail services may offer specific prices for direct marketing that differ from ordinary consumer postage. Quoting the price of a standard postage stamp as the universal cost of a campaign would therefore be misleading.
Production costs are only part of the calculation. A catalogue requires design and content preparation, while personalised offers may involve data processing and variable printing. A campaign that encourages telephone enquiries or appointments also creates work for sales or customer service teams. Proper evaluation should include these resources rather than treating distribution as the entire investment.
This cost structure makes segmentation particularly important. Sending material to a broad audience with little indication of commercial relevance can quickly consume a substantial budget. Selecting a smaller group based on purchasing behaviour, geographic suitability or identifiable needs may offer a stronger economic proposition, even if the total number of recipients is much lower.
Profit margins ultimately determine what a campaign can afford. A retailer earning only a small contribution from each order needs a considerable number of additional purchases to recover a postal campaign’s cost. A company selling valuable equipment or profitable recurring services can justify a much higher customer acquisition cost. Direct mail cannot be classified as expensive or efficient independently of the business model it is supposed to support.
Measuring Results Requires More Than Counting Responses
One reason digital advertising dominates marketing investment is the apparent precision of its measurement. Businesses can monitor clicks, visits, form submissions and purchases, even though attribution problems remain common. Direct mail creates fewer automatically recorded interactions, requiring companies to establish their own measurement mechanisms.
A campaign can include a dedicated promotional code, a specific landing page, a unique telephone number or a QR code leading to a relevant offer. These devices make certain responses observable. However, they do not capture every possible effect. A customer might read a catalogue, remember the company and visit its website independently several days later without using the identifier provided.
Sales data can supply additional evidence. Businesses can examine purchasing behaviour before and after distribution, compare customer segments and look at changes in average order value or purchasing frequency. But an increase in sales following a mailing does not automatically establish that the mailing caused the increase. Seasonal demand, existing customer intentions and simultaneous digital campaigns may all contribute.
Where sufficient data is available, a comparison group provides a stronger foundation. A business can identify comparable customers, send the campaign to one group and withhold it from the other. The difference in subsequent commercial behaviour helps estimate the incremental effect of the mailing, rather than attributing every purchase made by recipients to the printed material.
The final assessment should consider the contribution generated by additional purchases after discounts, variable costs and campaign expenditure. A high response rate is not necessarily a profitable result, and a modest response rate may still justify the investment when each additional customer is valuable. The appropriate indicator depends on whether the campaign aims to generate orders, qualified appointments, repeat purchases or another commercially meaningful outcome.
Targeting, Privacy and Timing Determine Whether a Campaign Is Practical
Effective postal marketing depends on the quality and legitimacy of the data used. Customer records may contain outdated addresses, incomplete information or contact preferences that have changed. Every incorrect mailing represents unnecessary expenditure, while inappropriate use of personal information creates legal and reputational risks.
Requirements differ between jurisdictions, particularly regarding the lawful use of addresses, transparency and the right to object to marketing. In France, guidance published by the data protection authority CNIL in June 2026 states that recipients must be informed about postal prospecting and able to object simply and without charge. Businesses operating internationally must examine the rules applicable to their own campaigns rather than assuming that postal advertising is exempt from data protection obligations.
Timing also matters. A printed invitation must arrive early enough for recipients to organise themselves, while a promotional offer needs a delivery schedule compatible with its expiry date. Unlike an email that can be sent immediately, postal campaigns involve production and distribution lead times. A perfectly targeted message delivered after the commercial opportunity has passed offers little value.
These considerations belong within a marketing strategy that selects channels according to genuine commercial priorities. Direct mail should not be added simply to demonstrate that a business operates across multiple channels. It should have a defined audience, a reason for using a physical format and a measurement approach that can establish whether the investment contributes to the company’s objectives.
There is no convincing reason for businesses to abandon the speed, flexibility and reach of digital marketing in favour of printed communication. Equally, there is little reason to exclude physical mail merely because it belongs to an older generation of marketing techniques. The relevant question is whether the format can accomplish something valuable at a sustainable cost. When the audience is carefully selected, the message is pertinent and the commercial return can be evaluated, a letter may still deserve a place alongside far more sophisticated digital tools.
Written by Julien Ricciarelli-Bonnal
18 October 2026
