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Corresa is software for specialty retailers who receive many advice-heavy customer inquiries by email. It is installed on the retailer's own server and reads along in an existing service inbox. For every inquiry, Corresa detects language and intent, searches the connected web shop for matching products when needed, and drafts a reply. The draft lands in a review view: the customer email on the left, the suggestion on the right. Statements the system cannot reliably back up, such as delivery times or measurements, are marked as placeholders. Only once an employee has resolved every placeholder and approved the text can the reply be sent. Corresa does not replace service staff; it takes the writing off their hands: the time per reply drops significantly while the professional responsibility stays with the team.

Customer inquiries contain personal data: names, orders, sometimes complaints. A self-hosted solution means this data never leaves your own server in the direction of a software vendor. Corresa is installed at the retailer; emails, drafts and analytics live only there. We operate no cloud, have no access, and are technically unable to read the content. For your privacy policy this means: a shorter processing chain, clearer responsibilities, simpler access and deletion processes. The only external processing is the AI service. And the retailer controls it through their own contract with a European provider, including a data processing agreement and no training on their data. This architecture sets Corresa apart from SaaS offerings where all customer communication runs through the vendor's systems.

Corresa ships no language model of its own and bills no AI usage. Instead, the retailer stores an API key from a contract they have concluded themselves with an AI provider. We recommend a European provider with a data processing agreement, no training on customer data and a short retention period, for example Mistral in Paris. This has three consequences. First, cost transparency: inference costs appear directly at the AI provider, with no markup and no per-case fees. Second, control: the retailer decides which model is used and can switch providers without switching Corresa. Third, data protection: the data flow is fully governed by contracts the retailer holds themselves. We are never a party to the data processing.

Yes, and it is enforced by the software, not a recommendation. Every draft passes through a review view where an employee reads, edits and approves the text. If a draft contains open placeholders, the send button is locked; this cannot be disabled. That makes Corresa fundamentally different from chatbots that communicate with customers on their own. This also matters with regard to the European AI transparency rules, which target such systems. With Corresa, communication remains email correspondence for which humans are responsible. For data protection officers we include suitable documents at launch: a building block for the privacy policy, a checklist for the data processing agreement with the AI provider, and a training sheet for the team.

Corresa costs 800 € per month, cancellable monthly with no minimum term. Added to that is a one-time setup from 999 €, which covers installation, connecting the inbox and web shop, and training materials. There is no fee per inquiry or per reply; the number of processed inquiries is unlimited. The only usage-based item is the retailer's own contract with their AI provider, typically a few euros per month, billed directly by the provider and without any markup from us. Updates and support are included, and Corresa runs self-hosted on the retailer's own server.