Retarus Transactional Email

Input—per 1M tokens

Output—per 1M tokens

Context—tokens

WeightsClosed

About

Retarus Transactional Email is ranked #10 of 36 in transactional email software on Inferse, made by Retarus Transactional Email (Munich, Germany). It runs on API, Web. A free trial is offered.

Compared on transactional email software

Phishing detection: Yesretarus.com
Malware scanning: Yesretarus.com
Attachment scanning: Yesretarus.com
Quarantine access: user_and_adminretarus.com
Supported mail platforms: Microsoft 365; existing email systems and mail serversretarus.com
Quarantine retention: 30 daysretarus.com
Deployment type: cloud_gatewayretarus.com

Facts

Delivery methods: bothretarus.com · 20 Sept 2026
Event webhooks: Yesretarus.com · 20 Sept 2026
Dedicated IP option: Yesretarus.com · 20 Sept 2026
Purpose: Sends large volumes of transactional emails directly from business applications through Retarus Enterprise Cloud.docs.retarus.com · 1 Oct 2026
Delivery rate: Retarus states a delivery rate of 98% or higher.retarus.com · 1 Oct 2026
Throughput: The service states guaranteed processing capacity of 100,000 emails per hour, while its Email API page states capacity of up to 10 million emails per hour.retarus.com · 1 Oct 2026
Interfaces: Transactional Email provides REST API and SMTP interfaces, with JSON and SMTP/MIME data-format support.retarus.com · 1 Oct 2026
Integrations: Retarus says Transactional Email integrates directly with SAP, Microsoft, Salesforce, and ServiceNow business applications.retarus.com · 1 Oct 2026
Authentication: Available authentication methods include SMTP basic authentication, SMTP source-IP authentication, and REST basic authentication.retarus.com · 1 Oct 2026
Email security: Features include SPF, DKIM, DMARC, enforced TLS, antivirus multiscan, encrypted attachments, and message signing.docs.retarus.com · 1 Oct 2026
Compliance: Retarus states that its data centers fulfill requirements including EU GDPR, HIPAA, Sarbanes-Oxley, PCI DSS, CAN-SPAM, and TISAX.retarus.com · 1 Oct 2026
Data centers: Retarus processes data in self-operated data centers in Germany, Switzerland, the United States, and Asia, without hyperscalers.retarus.com · 1 Oct 2026
Monitoring: The myEAS web portal provides dashboards, real-time monitoring, reporting, and self-service configuration for administrators.retarus.com · 1 Oct 2026
Email search: The Email API supports searching outbound emails by time period, message ID, sender, and recipient, with status information for the past 45 days.retarus.com · 1 Oct 2026
Support: Retarus describes support from expert staff with no call center or chatbots, covering scope, migration, production, and go-live.retarus.com · 1 Oct 2026
Target customers: Retarus identifies software vendors, platform businesses, large enterprises, and highly regulated industries as target users.retarus.com · 1 Oct 2026
Trial restrictions: The documented free trial is limited to 30 days and 5,000 emails, with no more than 200 emails processed per hour.retarus.com · 1 Oct 2026