More Efficiency with Transactional Email for Business Applications
Seamless and reliable transactional email directly from your business applications. Get more out of email connected via SAP, Salesforce, and more.
Augment Existing Processes
Empower your workflows and critical processes with transactional email for SAP, Salesforce, and much more.
Unburden Your Infrastructure
Send large email volumes with exceptional throughput and delivery rates (with 98.67% far above market average) directly from business applications, without burdening your own infrastructure.
Interested in Simplifying and Streamlining Transactional Email Instead?
Find out how we close gaps and fully optimize your entire email landscape.
Monitoring and Reporting Made Easy
Get a clear and concise overview of all email traffic and statuses, get real-time data, and manage rules and access, all from a centralized intuitive web portal.
Customer Ratings and Reviews
“With Retarus WebExpress our marketing department is able to take action much faster than before. Fax campaigns can now even be sent at short notice without difficulty.”
Read customer story Karl-Heinz Aupperle, Marketing Head, winkler Group
“Swift and simple filtering and prioritization of information are the basis of any effective communication process.”
Read customer story Peter Zündorf, Head of IT systems, Deutscher Sparkassen- und Giroverband (DSGV)
“The efficient, neat implementation did not only win us over, but also our business partners. One big automobile manufacturer expressly pointed out the quick reaction times and general expertise of the Retarus team.”
Read customer story Alexander Grothe, eCommerce Team Leader, Optibelt GmbH
“We send more than a million faxes every year, so we were looking for a service provider who could reliably handle our high fax volumes, even at peak times such as the run-up to Mother’s Day. Retarus met every single one of these requirements.”
Read customer story Marc Ober, IT Director, Interflora France
“We will eliminate all of Austrian Post’s remaining fax servers step by step replacing them with the appropriate Retarus services.”
Read customer story Reinhard Knie, Head of Solution Management CEE , Atos
Find the Right Transactional Email Solution for Your Business Applications
Want to Find Out More About Retarus Transactional Email?
Retarus Transactional Email in Action
See how Retarus’ high capacity, powerful Transactional Email improves business communication.
Retarus Transactional Email in Detail
Interested in detailed product information about Retarus Transactional Email? Visit our Product Documentation Center.
Corporate Blog
Read about product developments, market news, and other updates from Retarus.
Frequently Asked Questions
Is the implementation of transactional email difficult?
Not with Retarus. Enterprises often have complicated requirements or critical processes that cannot be interrupted, but we have experience from thousands of successful migrations and onboardings with many of the world’s leading companies.
Is there documentation available about compatibility and feature details?
Yes. Retarus Transactional Email supports numerous types of business applications and has a rich feature set. Detailed feature overviews and documentation can be found here.
How can AI be leveraged in Retarus API Documentation?
The Retarus Docs MCP Server allows AI tools such as Claude, Cursor, ChatGPT, and VS Code to access public Retarus documentation directly through the Model Context Protocol (MCP). Instead of relying on manually copied content, AI assistants can retrieve relevant information from the Retarus Developer Portal on demand and in context.
This helps users quickly find API endpoints, authentication requirements, parameters, example requests, reporting queries, and other documentation. It can support both developers and non-technical users when researching APIs, planning integrations, or answering documentation-related questions. For more detailed information, check out our documentation here.Is the Retarus Docs MCP Server secure?
Yes. The Retarus Docs MCP Server provides read-only access to public documentation only. It does not provide access to customer data, credentials, user accounts, or production systems, and it cannot execute API requests.
As with any AI-generated output, responses should be reviewed against the official Retarus documentation before implementation or operational use. Setup instructions and additional information are available here.Where can I find out more?
Visit our Transactional Email overview page. Read our case studies and analyst reports. Check out our corporate blog and upcoming webinars, and feel free to book a demo. We’re always happy to help.