Retarus Transactional Email: A New Workflow for Your Processes
Send transactional mails from modern and legacy applications. Regardless of whether your systems are running on-premises, in the cloud or hybrid.
Active Control Over your Traffic
Overrule sending limits and separate email traffic. Control emails based on the domain with smart send and receive.
Standardized and Integrated
Standardized interfaces and APIs, available for all business applications, all seamlessly integrated into workflows and processes.
Looking for business applications and connectors instead?
Integrate Transactional Email with leading systems such as SAP and Salesforce.
Transparent and Guaranteed
Comprehensive real-time monitoring and reporting for all email traffic, all in one centralized web portal. Guaranteed throughput and bandwidth.
Customer Ratings and Reviews
“The collaboration with the team at Retarus was uncomplicated, and within a few weeks we had access to the interface from the Swiss data center. The integration was extremely easy for my team.”
Read customer story Riccardo Trombini, CTO, Starmind AG
“Retarus helps us to lower the risk of blacklisting, spams and get the e-mails (invoices) to the customer - reliable, fast and compliant! Great reporting engine and they are vey open for suggestions!”
Read full review IT Services
“Retarus reacted swiftly to our enquiry, understood our needs and professionally implemented the project within a very short space of time.”
Read customer story Patrick Brandner, Application Hosting Service Delivery Manager, Solvay SA
“The collaboration with the team at Retarus was uncomplicated, and within a few weeks we had access to the interface from the Swiss data center. The integration was extremely easy for my team.”
Read customer story Riccardo Trombini, CTO, Starmind AG
“Like samedi, Retarus places great importance on data protection and compliance. Modern programming interfaces made it easy to integrate the services into our platform and they were up and running quickly and reliably.”
Read customer story Michael Siebert, Chief Principal Engineer (CPE), samedi GmbH
Find the Right Transactional Email Solution for Your IT Landscape
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
Do you offer security features for transactional email?
Yes, Retarus TEM can scan outbound messages for malware and malicious links. We also support SPF, DKIM and DMARC validation, DNSSEC and encrypted attachments, amongst other security functionalities.
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.