Send High Volumes of Time-Sensitive Emails with Retarus

Exchange Online, the email infrastructure behind Microsoft 365 (formerly Office 365), is designed for employee correspondence with Outlook and certainly has its limitations. If you want to send a high volume of emails or time-sensitive emails from business applications like marketing automation tools, e-commerce applications, ERP, CRM or ticket systems, you need a specialist. Retarus helps you to avoid Office 365 sending limits with professional high performance email services.
Increase Email Deliverability from Your Business Applications
Order confirmations, access data, invoices, newsletters and more. With the flexibility to use any number of applications to send ten emails per day or ten million per hour, Retarus Transactional Email can handle this high volume of email without barriers like the Exchange Online or Microsoft 365 (previously Office 365) email limitations. With a CSA-certified high-performance email infrastructure, dedicated IP addresses, reputation management, dynamic IP routings and more. Our solution has everything you need to get your marketing and transactional emails around possible obstacles like the Microsoft 365 (formerly Office 365) email limit.

Retarus Transactional Email – Your Benefits
- Send up to 10 million emails/hour without triggering Microsoft 365 (formerly Office 365) email limitations
- Extremely high delivery rate
- No volume or message size limits (attachment)
- Integration via standard interfaces (SMTP, REST)
- Unburden or even get rid of your own email infrastructure
- Sophisticated reputation management
- Dedicated and shared IP addresses
- CSA-certified with allowlisting for large ISPs
- Bounce management included
- Detailed tracking and reporting
- Best in class support
- Data centers can be audited anytime
- Compliant data processing
- Become independend from Exchange online and Microsoft 365 (former Office 365) email limits.