Transactional Emails directly from your applications Customers love emails that arrive quickly.
From newsletters and order confirmations to password resets and status notifications – fast delivery of transactional emails plays an essential role in the customer journey. Experience just how much your customers will love reliable deliverability.
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Achieve a better delivery rate for your transactional emails with email service provider Retarus.
Unburden your own infrastructure, become a trusted sender and send transcational emails in compliance with local data protection regulations. As email service provider, Retarus processes your data in its own data centers—contractually agreed in the United States, Germany, Switzerland, or Asia.
- Multi-Interface Architecture
- Data Validation
- Queuing
- CSA-Compliant Email Rendering
- High-Volume Delivery Platform
- Setup and Configuration
- Tracking and Reporting
- Reputation Management

It’s about your reputation
Retarus Transactional Email keeps your sender score high and ensures that the delivery rate is high too (inbox placement) by sending emails from a domain that belongs to you and you control. The sender address that the recipient sees is identical to the technical address, so that the recipient’s SPF and DKIM checks are always authentic.
The sender address is also important for IP routing by sender domain. You can use multiple sender domains to send your traffic from different IP addresses, which drastically reduces the impact of possible blacklisting. Retarus Transactional Email Service ensures effective reputation management and ensures a highly efficient transactional email deliverability.
Prevent the slowing of online business while it continues to grow.
The Retarus Deliverability Guide will show you how you can maintain your sender reputation as your email volume increases and ensure that transactional emails reach the inboxes of your recipients quickly and reliably. The Retarus Deliverability Guide is available to you now as a PDF, free for download.
Download the free PDF now
Bounce management included
Another key element to protecting your reputation as a sender are Retarus Suppression Lists. They cache erroneous recipient email addresses when sending bulk emails and block resend attempts prior to sending. And you learn which recipients cannot be reached and why, so you can maintain your distribution list and ensure that you do not generate any unnecessary bounces.
In addition to comprehensive transactional email API functions, the Retarus EAS Portal (Enterprise Administration Services Portal) displays tracking and status information of messages at all times. These can be analyzed, so you can quickly clean up and optimize master data.
“Connecting to the service via standard interfaces such as SMTP und REST enables a virtually seamless technical transition, especially with such a large number of different applications.”
Manfred Eder, Group Head Messaging and Communication Services, BSH Hausgeräte GmbH
Advantages of the Retarus Transactional Email Service
Use cases: transactional email solutions for real world applications

aigle
Aigle optimizes its ordering processes
Sport and outdoor clothing specialist Aigle is consolidating its IT infrastructure by means of an intelligent output management service provided by Retarus and Symtrax. The smooth and speedy transmission of business documents accelerates workflows and reduces costs.

solvay
Solvay integrates customized communication service for SAP
The Solvay Group, one of Europe’s leading chemical companies, relies greatly on secure and dependable email communication directly from their SAP systems. Retarus Email for SAP provides Solvay with a customized solution that combines high performance with maximum process transparency.

Communication solutions for the Internet of Things (IoT)
Digitalization is finding its way into more and more factories and private households. Under the guise of keywords like “Industry 4.0” or “Internet of Things” (IoT) people are increasingly counting on “intelligent” machines and devices. To ensure that electronic communication is fit for this digital age, new and dependable messaging processes are required.
Enterprise Email: Better delivery. Better throughput.
With Retarus Transactional Email, marketing campaigns sent from applications remain separate from business, user-based communications. Your reputation remains intact even when sending extremely large volumes of transactional emails. And your emails reach their recipients. With more than a quarter of a century of email marketing experience, you can count on Retarus’ expertise to help you optimize the setup and operation of your system. This makes Retarus the ideal email service provider for optimizing the customer journey through transactional emails or sending marketing emails.
Increase the delivery rate for transactional emails and relieve your own infrastructure
Learn more about how Retarus’ enterprise email service can help you reliably achieve your goals. Our experts are happy to consult with you. By phone, email, or on site.