No spam proxy
NoSpamProxy, a product line of Germany's Net at Work GmbH, provides a German-engineered Secure Email Gateway — covering spam, malware, encryption, large file transfer, and disclaimer management — as both cloud and on-premises software to over 6,000 SMB, enterprise, healthcare, and public-sector customers, primarily across DACH.
- Company typePrivate
- Founded2011
- HeadquartersPaderborn, Germany
- Headcount—
- GTM typeB2B
- OfferingSoftware
What No spam proxy does
NoSpamProxy is a German email security gateway product line developed and operated by Net at Work GmbH, a privately held GmbH headquartered in Paderborn, Germany. The product has been continuously offered for more than 15 years and is sold to over 6,000 organizations, ranging from SMBs to large enterprises and public-sector bodies, with a primary operating geography in Germany and the broader DACH region. NoSpamProxy positions itself on three strategic axes: German-engineered and German-data-residency compliance (TeleTrust 'IT Security Made in Germany' certification, BSI TR-03108/TR-03182 alignment, GDPR-compliant processing in European data centers), tight Microsoft 365/Exchange integration as a complementary Secure Email Gateway, and an owner-managed Mittelstand operating model with no external investors. The 2025 BSI/eco/Bitkom Hall of Fame Gold award reflects deepened regulatory positioning in the public-sector and healthcare verticals.
The platform's core technology is a Secure Email Gateway that sits between email servers and the internet, inspecting inbound and outbound traffic for spam, malware, ransomware, phishing, and CEO fraud. It is offered in two deployment models (NoSpamProxy Server on-premises and NoSpamProxy Cloud SaaS) and is composed of four modular products: Protection (with the proprietary AI-based 32Guards threat intelligence service, 32Guards Sandbox, Content Disarming & Reconstruction, URL Safeguard, and CxO Fraud Detection), Encryption (S/MIME 4 and PGP with automated certificate management via SwissSign and Sectigo), Large Files (secure webserver-based transfer), and Disclaimer (centralized signature/disclaimer management). In 2024–2025, the company launched 25Reports, a standalone DMARC monitoring tool (priced from €29/month) that expands the addressable market beyond gateway buyers. The product supports multi-tenancy for Managed Service Providers and integrates with the German federal network infrastructure (NdB/formerly DOI) for public-sector clients.
NoSpamProxy makes money primarily through per-user subscription licensing (monthly, annual, and three-year contract durations available) for both Cloud and Server deployments, with the Suite bundle offering all four modules at a discount relative to à la carte pricing. The 25Reports SKU introduces a low-ARPU monthly tier starting at €29. Go-to-market combines direct enterprise sales (phone-based, quote-led), a certified partner/reseller channel with NFR licenses, free-trial product-led growth for the Cloud and Server SKUs, and the Microsoft Azure Marketplace as a third channel. The company does not disclose revenue or headcount, and its no-investor, organic-growth posture is consistent with a mature Mittelstand software business rather than a venture-backed scale-up.
No spam proxy firmographics
Firmographics- Name
- No spam proxy
- Legal name
- Net at Work GmbH
- Website
- https://nospamproxy.de
- Company type
- Private
- Founded year
- 2011
- Operating status
- Operating
- Short description
- NoSpamProxy, a product line of Germany's Net at Work GmbH, provides a German-engineered Secure Email Gateway — covering spam, malware, encryption, large file transfer, and disclaimer management — as both cloud and on-premises software to over 6,000 SMB, enterprise, healthcare, and public-sector customers, primarily across DACH.
- Ownership category
- akta.pro rank
No spam proxy industry classification
Industry- Product category
- Secure Email Gateway
- NAICS
- Security Systems Services (except Locksmiths) (561621), Computer Systems Design and Related Services (54151)
- SIC
- Services-Prepackaged Software (7372)
- akta.pro primary industry
- Email Authentication & Domain Protection (DMARC/SPF/DKIM) (HDADAKAC)
Keywords
Where No spam proxy is headquartered
LocationHeadquarters
- HQ city
- Paderborn
- HQ country
- Germany
- HQ region
- Europe
Offices1 record
Markets served
No spam proxy business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Marketing or Sales, Operations, Infrastructure
Revenue model
- NoSpamProxy Cloud Subscription: Cloud-based email security gateway with subscription pricing per user, featuring automatic updates, high availability, and scalability. Billed monthly or annually.
- NoSpamProxy Server License: On-premises email security gateway with perpetual or subscription licensing, offering same features as cloud version for companies preferring on-premises deployment.
- Module Bundles (Suite): Bundled package of all four NoSpamProxy modules (Protection, Encryption, Large Files, Disclaimer) at discounted price compared to individual module purchases.
- 25Reports Subscription: Standalone DMARC monitoring tool available independently from other NoSpamProxy modules, with pricing starting at €29 per month.
- Microsoft 365 Mail Security Add-on: Modular extension for Microsoft 365 environments combining spam/malware protection, encryption, large file transfer, and disclaimers.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Monthly | NoSpamProxy Suite - Complete bundle |
| Per seat | Annual | Individual Modules |
| Subscription | Monthly | 25Reports DMARC Tool |
| Freemium | Pay-as-you-go | Free Trial |
Go-to-market motion3 records
Distribution channels5 records
Marketing channels10 records
No spam proxy product offering
Product offeringCore offering
NoSpamProxy is a Secure Email Gateway that sits between an organization's email server and the internet, inspecting inbound and outbound messages for spam, phishing, malware, ransomware, and CEO fraud, while providing integrated S/MIME and PGP encryption, secure large file transfer, and email disclaimer management. It is sold as both an on-premises software appliance (NoSpamProxy Server) and a managed cloud service (NoSpamProxy Cloud), with optional standalone add-ons including the 25Reports DMARC monitoring tool and the 32Guards AI threat intelligence service.
Product overview
NoSpamProxy is a modular email security gateway platform developed in Germany by Net at Work GmbH, available in both cloud-hosted (NoSpamProxy Cloud) and on-premises (NoSpamProxy Server) deployment models. The platform offers a suite of integrated modules including NoSpamProxy Protection (spam/malware filtering with AI-based 32Guards threat intelligence), NoSpamProxy Encryption (S/MIME/PGP email encryption with automated certificate management), NoSpamProxy Large Files (secure large file transfer), and NoSpamProxy Disclaimer (email signature/disclaimer management), all available as individual modules or bundled as NoSpamProxy Suite. Additional products include NoSpamProxy 25Reports (standalone DMARC monitoring and reporting tool), 32Guards and 32Guards Sandbox (AI-powered threat intelligence and sandboxing services), Managed Certificates (automated certificate provisioning), and Microsoft 365 Mail Security (M365-specific protection layer). The platform features multi-tenant architecture suitable for both enterprise deployments and Managed Service Providers.
Differentiator
Problem solved
Functional benefit
Brands
- NoSpamProxy Server: On-premises email security gateway solution providing spam protection, malware defense, email encryption, large file transfer, and disclaimer management.
- NoSpamProxy Cloud
- NoSpamProxy Protection
- NoSpamProxy Encryption
- NoSpamProxy Large Files
- NoSpamProxy Disclaimer
- 25Reports
- 32Guards
- 32Guards Sandbox
Products and services
- NoSpamProxy Server
Quantifiable outcome
- Over 6,000 companies trust NoSpamProxy for email security
- +2 more outcomes
Companies that use No spam proxy
Customer profileNamed customers15 records
Segments6 records
Ideal customer profiles5 records
No spam proxy technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration7 records
AI capability6 records
Feature9 records
No spam proxy partnerships and signals
Strategic signalPartnerships
Seven partnerships are on record, tiered core and minor.
- BSI (Bundesamt für Sicherheit in der Informationstechnik)coreNoSpamProxy participates in the BSI-led E-Mail Security Year 2025 initiative alongside eco and Bitkom. Awarded Gold status in the Hall of Fame for implementing BSI Technical Guidelines TR-03108 (secure email transport) and TR-03182 (email authentication).
- eco Verband der InternetwirtschaftminorCo-organizer of E-Mail Security Year 2025 initiative with BSI and Bitkom, promoting email security in Germany.
- Bitkom DigitalverbandminorCo-organizer of E-Mail Security Year 2025 initiative with BSI and eco, working to make German email traffic more secure.
- MicrosoftcoreNoSpamProxy integrates with Microsoft 365/Office 365 as a supplementary email security layer. Available in Azure Marketplace. Supports Exchange Online connections with TLS-Client authentication. NoSpamProxy optimizes mail security in Microsoft 365 environments.
- SwissSigncoreSwissSign provides Managed PKI (MPKI) services for S/MIME certificate management within NoSpamProxy. NoSpamProxy supports automatic certificate generation through SwissSign integration for Exchange Online and other services.
- SectigocoreSectigo is available as a provider for cryptographic key requests in NoSpamProxy Server, replacing the previous DFN provider. Supports certificate management for email encryption.
- TeleTrust Bundesverband für IT-Sicherheit e.V.minorTeleTrust awards the 'IT Security made in Germany' certification to NoSpamProxy, recognizing German-developed IT security solutions.
Scale indicators4 records
Recent moves6 records
Expansion highlights5 records
No spam proxy competitors and assessment
Company assessmentDirect peers
- Retarus: Retarus is a Munich-based email security specialist offering Secure Email Gateway, encryption, and compliance services for enterprises with focus on DACH. Comparable to NoSpamProxy in geography, target customer (enterprise/mid-market), and product offering around secure messaging and email protection.
- Hornetsecurity: Hornetsecurity is a German-based email security provider offering cloud-based Secure Email Gateway, spam/malware protection, and compliance (GDPR/GoBD). After acquiring Vade Secure (2024) and Altospam (2023), it serves 12,000+ customers and is the most direct German-headquartered competitor to NoSpamProxy in the DACH SEG market.
- Vade Secure: Vade Secure is a France-based AI-driven email security provider offering anti-phishing, anti-spear phishing, and DMARC/DMARC reporting for ISPs, hosting providers, and SMBs. Acquired by Hornetsecurity in 2024 but still operates as a distinct brand; comparable to NoSpamProxy in AI-based threat detection focus.
- Avanan: Avanan is a cloud-native email security platform acquired by Check Point Software (2021) that protects M365, Google Workspace, and other cloud email. Competes with NoSpamProxy for the M365 complementary protection use case with an API-based approach, primarily targeting mid-market and enterprise.
- Mimecast: Mimecast is a global cloud-native email security provider offering Mimecast Secure Email Gateway, Targeted Threat Protection, and email encryption. Direct competitor to NoSpamProxy for M365 complementary protection, but with broader international presence and larger enterprise customer base.
- Proofpoint: Proofpoint is the global market leader in email security, offering Secure Email Gateway, email encryption, threat intelligence, and DMARC protection (via acquired Prevoty/Sigma). Competes head-to-head with NoSpamProxy for enterprise email security RFPs, particularly in regulated industries, but with materially larger scale (taken private by Thoma Bravo for $12.3B in 2021).
- Sophos Email: Sophos Email (formerly Reflexion Networks / Sophos PureMessage) provides email security, anti-phishing, and encryption for SMB and mid-market, often sold alongside Sophos endpoint products. Comparable channel-led GTM and target customer to NoSpamProxy; Sophos is owned by Thoma Bravo.
- Barracuda Networks: Barracuda Networks offers Barracuda Email Security Gateway with spam/malware protection, encryption, and DMARC capabilities for SMB to mid-market. Direct comparable to NoSpamProxy in target segments and feature set; now owned by KKR following take-private in 2022.
Broad incumbents
- Cisco Secure Email: Cisco Secure Email (formerly IronPort) is an enterprise email security gateway from Cisco, offering anti-spam, malware defense, and encryption for large enterprises. Competes with NoSpamProxy for large multinational customers as part of Cisco's broader security portfolio, though typically a more expensive and complex deployment.
- Microsoft Defender for Office 365: Microsoft Defender for Office 365 (formerly Office 365 ATP) is the bundled native email security offering within Microsoft 365 E3/E5 subscriptions. Direct functional substitute for NoSpamProxy Protection module and the primary competitive threat, given its inclusion in the M365 license NoSpamProxy typically complements.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat5 records
Key risks5 records
Key highlights7 records
Customer concentration
No spam proxy social profiles
Digital presenceNo spam proxy compliance and trust
Trust signalCompliance3 records
No spam proxy financial estimates
Financial estimateRevenue estimate
Valuation estimate
No spam proxy leadership team
Management profileNumber of profiles
Profiles2 records
No spam proxy funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
No spam proxy M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about No spam proxy
What does No spam proxy do?
NoSpamProxy is a Secure Email Gateway that sits between an organization's email server and the internet, inspecting inbound and outbound messages for spam, phishing, malware, ransomware, and CEO fraud, while providing integrated S/MIME and PGP encryption, secure large file transfer, and email disclaimer management. It is sold as both an on-premises software appliance (NoSpamProxy Server) and a managed cloud service (NoSpamProxy Cloud), with optional standalone add-ons including the 25Reports DMARC monitoring tool and the 32Guards AI threat intelligence service.
Is No spam proxy a public or private company?
No spam proxy is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was No spam proxy founded?
No spam proxy was founded in 2011.
Where is No spam proxy based?
No spam proxy is headquartered in Paderborn, Germany, in the Europe region.
How does No spam proxy make money?
Five revenue lines are on record. NoSpamProxy Cloud Subscription is the primary driver. The others are noSpamProxy Server License, module Bundles (Suite), 25Reports Subscription and microsoft 365 Mail Security Add-on.
Who are No spam proxy's main competitors?
Direct peers on record are Retarus, Hornetsecurity, Vade Secure, Avanan, Mimecast, Proofpoint, Sophos Email and Barracuda Networks. Broad incumbents are Cisco Secure Email and Microsoft Defender for Office 365.
Does No spam proxy have an API?
No public API is recorded for No spam proxy.
What industry is No spam proxy in?
No spam proxy's product category is Secure Email Gateway. Its primary akta.pro industry code is HDADAKAC, Email Authentication & Domain Protection (DMARC/SPF/DKIM). Its NAICS code is 561621 and its SIC code is 7372.