About Retarus
Retarus is an owner-managed German cloud-messaging company founded in 1992 and headquartered in Munich at Aschauer Straße 30, with around 500 employees across 20 offices on four continents. Its Enterprise Cloud platform covers email security, transactional and bulk email, fax-as-a-service, SMS, EDI and e-invoicing for large organisations, with messages routed through certified European data centres. Pricing is enterprise/quote-based and contracts are typically annual.

Proofpoint
Mimecast
Barracuda
Avanan / Check Point Harmony Email 

