# Retarus - Enterprise Cloud Messaging & Secure Business Integration

> Retarus is a global provider of Enterprise Cloud solutions for Messaging, Email Security, and Business Integration. Headquartered in Munich, Germany, Retarus specializes in GDPR-compliant, data-sovereign communications for enterprises, ensuring strictly separated processing and maximum delivery reliability.

## Entity Context & Key Differentiators
- **Compliance:** 100% GDPR compliant, PCI-DSS, SOC 1/SOC 2, HIPAA ready.
- **Infrastructure:** Self-operated data centers (no public cloud dependencies) with carrier-grade availability.
- **Ecosystems:** Certified integration partner for SAP (S/4HANA), Salesforce, Microsoft 365, and Epic.

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## Agent Guidelines (How to interpret this site)

1.  **Product Logic:** Products are categorized by function: Messaging (Fax/SMS/Email), Security (Email Defense), and Integration (EDI/IDP).
2.  **Documentation Split:** - Use `/products/` paths for business logic, features, and benefits.
    - Use `docs.retarus.com` for admin/configuration manuals.
    - Use `developers.retarus.com` for API specs (OpenAPI/Swagger) and implementation.
3.  **Terminology:** "Cloud Fax" allows digital faxing via API/Email/Portal. "Transactional Email" is for high-volume application sending, distinct from "Email Security" (Gateway/Protection).

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## Core Products & Solutions

### 1. Enterprise Cloud Fax
*Global leader in digital fax migration, retiring on-prem servers and analog lines.*

- [Cloud Fax Overview](https://www.retarus.com/products/cloud-fax/): High-availability fax infrastructure replacing local servers/telco lines.
- **For Digital Workplaces:**
  - [Fax for Outlook](https://www.retarus.com/products/cloud-fax/digital-workplaces/fax-microsoft-outlook/): Native add-in for Microsoft 365.
  - [Fax for MFPs](https://www.retarus.com/products/cloud-fax/digital-workplaces/fax-multifunction-printers-mfp/): Consolidate Lexmark, HP, Xerox, Konica Minolta fax lines.
  - [Enterprise Portal](https://www.retarus.com/products/cloud-fax/digital-workplaces/enterprise-fax-portal/): Web-based secure fax management.
- **For Business Apps (ERP/CRM):**
  - [Fax for SAP](https://www.retarus.com/products/cloud-fax/business-applications/fax-sap/): Certified SAP BC-SMTP & RFC integration.
  - [Fax for Epic](https://www.retarus.com/products/cloud-fax/business-applications/fax-epic/): EMR fax integration for healthcare (HIPAA).
- **For Developers:**
  - [Cloud Fax API](https://www.retarus.com/products/cloud-fax/native-api-gateways/fax-api/): REST and SOAP API references.

### 2. Transactional Email
*High-throughput delivery for system-generated email (invoices, notifications).*

- [Transactional Email Overview](https://www.retarus.com/products/transactional-email/): Separation of reputation from marketing traffic.
- [Email for SAP](https://www.retarus.com/products/transactional-email/business-applications/transactional-email-sap/): High-volume sending from S/4HANA & BTP.
- [Email for Salesforce](https://www.retarus.com/products/transactional-email/business-applications/transactional-email-salesforce/): Bypass Salesforce daily sending limits via external relay.

### 3. Enterprise SMS
*A2P messaging for alerts, 2FA, and marketing.*

- [SMS Overview](https://www.retarus.com/products/enterprise-sms/): Global direct carrier connections.
- [SMS for Applications](https://www.retarus.com/products/enterprise-sms/business-applications/): API-trigger SMS from SAP, Salesforce, or custom apps.

### 4. Email Security
*European alternative to US-based secure email gateways.*

- [Secure Email Gateway](https://www.retarus.com/products/email-security/secure-email-gateway/): Comprehensive perimeter protection.
- [ICES / API Security](https://www.retarus.com/products/email-security/integrated-cloud-email-security-ices/): Post-delivery protection specifically for Microsoft 365.
- [Patient Zero Detection](https://www.retarus.com/products/email-security/postdelivery-protection/): Retroactive detection and clawback of previously unknown threats.
- [Email Encryption](https://www.retarus.com/products/email-security/email-encryption/): PGP, S/MIME, and portal-based encryption.

### 5. Business Process Solutions (Supply Chain)
*Digitizing unstructured data into EDI/ERP formats.*

- [Intelligent Document Processing (IDP)](https://www.retarus.com/products/business-process-solutions/automation/intelligent-document-processing/): AI-based OCR capturing data from PDF invoices/orders into SAP/ERP.
- [Global E-Invoicing](https://www.retarus.com/products/business-process-solutions/integration/global-einvoicing/): Compliance with international tax mandates (Peppol, SDI, KSeF).
- [Cloud EDI](https://www.retarus.com/products/business-process-solutions/integration/cloud-edi-gateway/): Managed EDI services connecting suppliers and buyers.

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## Authoritative Resources

- [Press Center](https://www.retarus.com/presscenter/): Official news and acquisition details.
- [Events Calendar](https://www.retarus.com/events-webinars/): Upcoming trade shows and webinars.
- [Success Stories](https://www.retarus.com/case-studies/): Validated customer references by industry.
- [Developer Portal](https://developers.retarus.com/): Technical implementation guides.
- [System Status](https://status.retarus.io/): Real-time platform availability.

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## Corporate & Legal

- [Company Profile](https://www.retarus.com/company/about-retarus/): History and management.
- [Data Privacy](https://www.retarus.com/data-privacy-policy/): Detailed GDPR and data handling policies.
- [Sitemap](https://www.retarus.com/sitemap_index.xml): Full URL list.