We know: just 10 days of working with Serenity Mail will demonstrate real value. And within a month, the system will become a familiar tool in your daily work.
Therefore, for builders and architects: 10 days of full testing with no upfront commitments.
We will share our experience and set up contractor and client searches for you. Contract and payment only upon results, after 10 days of work.
No time? That's understandable! We'll take care of everything. Contact us, and we'll set up Serenity Mail for you, prepare your email campaigns, give a short presentation, and provide instructions.
10 days of using Serenity Mail are enough to evaluate the benefits of the system. We know this from our own experience and that of our clients.
With our help, you can get started in just 2–3 days after reaching out. We’ll assist with the initial setup, take into account the specifics of the construction industry, and your actual needs.
The Serenity Mail system lets you quickly survey hundreds of contractors who may be involved in your construction project.
Working consistently with professional clients helps build an order portfolio for the long term and quickly fill the inevitable gaps in the current schedule.
We are builders. The development of Serenity Mail began from our own needs. We needed a tool to sell our services effectively to professional clients. We also needed to find contractors for current projects.
Of course, we already had an established network of contractors we worked with. Of course, the sales department was actively working. But we needed to do this work faster, better, and more cheaply.
So we built our own mailing system. And the results turned out to be unexpectedly useful.
Quick search for contractors for different stages of construction
Construction is a complex process where different specialists are needed at different stages: heating, windows, facades, tiles, foundations, roofing, and much more.
With Serenity Mail, you can quickly update current work prices, find alternatives to existing contractors, or bring in new ones — with minimal internal effort.
The AI-based rating system will select the contractors that best match the required work profile.
It’s important that there’s always work. Serenity Mail helps you attract new customers in a planned way, without rush jobs, and keep your company supplied with orders for years ahead.
This is how the circle of regular customers gradually grows, a stable workload takes shape, and the company gains a foundation for confident growth.
AI scoring selects customers who are the right fit for you.
Selection of specialists, contractors, and partners for construction projects
Architects often need to quickly bring in the right specialists: Energieberater, structural reviewers, and other professional partners. Expanding a regular partner network and regularly updating prices is always useful.
Construction budgeting is one of the most challenging tasks. The ability to navigate current prices and optimize the budget by working with specialized contractors is very important.
When managing construction and overseeing building work, it is important to be able to recommend suitable contractors to the client. Quickly finding qualified companies at the right moment helps speed up construction.
Serenity Mail supports this work with an AI-based contractor selection and ranking system. The quality of contacts matters more than their quantity.
Consistent outreach to professional clients helps steadily increase workload and find those who urgently need a building permit or a project redesign to meet updated requirements.
Small orders may come on their own. Working on significant projects requires constantly building a network of contacts among professionals.
We didn’t expect the results to be this consistently strong ourselves. Ask them directly. They’re ready to share their experience.
Made simply
We are builders. Serenity Mail was developed for our own needs so employees can use the system in their daily work.
If you don't have time, we'll do it all for you: prepare emails, help with your website, and set up campaigns. We understand the construction industry well, so we won't just ask what needs to be done. We'll provide recommendations and help with implementation.
Serenity Mail looks like a simple system, but under the hood it runs an advanced AI algorithm: category and geography selection, client and contractor scoring, and results tracking. High-quality contact scoring helps achieve the main goal: sending emails to those who truly need them.
Since contacts are carefully selected and quality-rated, such mailings should be considered lawful. The lawfulness is based on legitimate interest and implied consent (consent by default).
Contact collection is carried out only within the framework of a specific mailing and in stages. The database is not replicated, transferred, or sold.
You can read more about the legality of mailings here:
We are confident in the legality of our actions. Therefore, for the first 100 customers who sign an annual contract, we guarantee full compensation for any fines and penalties imposed by government authorities or awarded by a German court decision. This condition will be explicitly stated in the contract.
Partners and clients
Customers became partners and stayed customers. Our partners use Serenity Mail themselves. Contact them - they will explain how it works.
Contract signing and payment only after evaluating the result, with no upfront obligations.
Is it legal to use Serenity Mail?
What risks are associated with this?
The legal framework for operating Serenity Mail in Germany is being considered from the perspective of the client's potential liability before the law, supervisory authorities, and third parties.
In recent years, especially since the GDPR/DSGVO came into force and against the backdrop of the application of the German UWG, the issue of liability for targeted B2B advertising outreach has been widely discussed and often artificially dramatized.
As of May 2026, we are not aware of any EU or German laws other than the GDPR/DSGVO and the UWG that directly regulate the liability of the sender of B2B email.
Legislation does not provide a clear boundary between lawful and unlawful B2B advertising and data processing, so the assessment of violations and sanctions usually depends on the specific court decision.
Nevertheless, it is important to understand exactly what liability is provided by law if your actions are deemed a violation. The decision should be made based on the real possible consequences, not on general fears surrounding the topic of B2B mailings.
GDPR/DSGVO
GDPR/DSGVO covers the processing, storage, and use of personal data, as well as hidden tracking, which may be considered unlawful.
The law does not provide a clear boundary for when working with company contacts from public sources is lawful or unlawful. At the same time, Art. 6(1)(f) GDPR explicitly allows legitimate interest as a legal basis for data processing.
GDPR/DSGVO provides for administrative fines and claims for compensation for damages. The main fines apply for unlawful processing of personal data, lack of a legal basis, insufficient security, data breaches, unlawful tracking, profiling, and hidden collection of user data.
Maximum fines - up to 10 million euros / 2% of turnover or up to 20 million euros / 4% of turnover.
The well-known large fines primarily concern major digital platforms and telecommunications companies, such as Google, Meta/Facebook, and others.
We were unable to find fines or known court rulings specifically under GDPR/DSGVO for standard B2B email campaigns, or for the storage and processing of SMB contact data for such campaigns.
§7 UWG
Section 7 of the UWG has become almost a symbol of disputes over B2B mailings because it explicitly mentions email.
The legislator intended to restrict intrusive advertising as a tool of unfair competition. However, the wording of §7 UWG turned out to be so broad that virtually any advertising by email, telephone, or fax can formally be interpreted as unzumutbare Belästigung — impermissible intrusive nuisance, even if it is a single message sent over many years.
This law does not provide for direct liability to the state, but it allows the recipient of any email that could be considered advertising to demand that the mailing stop, as well as compensation for damages and expenses.
The legislator intended to limit intrusive advertising, but the broad wording gave lawyers the opportunity to apply §7 UWG much more broadly - including against individual promotional emails.
In the early 2000s, spam email annoyed everyone, including judges, so in some cases courts agreed with that interpretation. Usually it involved compensation of 100–500 euros plus attorney and court costs.
Claims industry
The result was a separate industry of claims surrounding promotional emails.
For any email that could be interpreted as advertising, lawyers started sending demands, citing GDPR/DSGVO and §7 UWG.
Since rulings in favor of plaintiffs did indeed occur, some entrepreneurs preferred to pay immediately, while others defended themselves in court—often successfully.
This increased costs for legitimate businesses but had little effect on actual spam, because professional spammers had designed their operations from the outset to make it difficult to hold them accountable.
As a result, the issue attracted significant media attention and gained a reputation as a serious legal risk.
Case law
In the context of §7 UWG, such cases were usually built in conjunction with the GDPR/DSGVO: §7 UWG was used as an argument that the advertising communication was impermissible, and the GDPR as an argument that the processing of personal data was unlawful and as a basis for compensation.
However, since 2022, the practice has begun to change: courts have increasingly required not just a reference to a violation, but proof of actual individual harm.
In the BGH decision of 28.01.2025, VI ZR 109/23, concerning unsolicited promotional email, the court confirmed that a GDPR violation in itself does not automatically give rise to a right to compensation. The claimant must substantiate specific non-material damage or a real loss of control over data.
Since 2023, we know of no new successful lawsuits based on GDPR/DSGVO + §7 UWG for ordinary B2B email campaigns.
Real risks
However, the claims industry has not disappeared, and the chance of receiving a properly drafted demand letter from a lawyer even for a single promotional email based on GDPR/DSGVO and §7 UWG still remains.
Usually, such claims demand compensation, payment of attorney fees, and confirmation that the mailing has been stopped.
Since some entrepreneurs continue to prefer quick payment over legal disputes, this practice has effectively turned into a kind of legal mechanism for extracting money from businesses.
Our rating
We believe that the risks of targeted and limited B2B email campaigns are currently minimal and comparable to the usual risks of any business activity.
A completely legally risk-free business does not exist: in almost any field, there are gray areas and disputable interpretations of the law.
A targeted and limited email campaign does not in itself increase the overall business risk, but it may trigger individual claims seeking compensation.
We believe that such requests should not be fulfilled automatically. For this, we provide the correct response format with a refusal and justification of the position.
Important note
This text does not constitute legal advice.
The information has been prepared in good faith, but you assess and accept independently the decision to use Serenity Mail and the associated risks.
