Ask us about our special pricing for our customers for one and two years

Filter out all messaging threats including spam and viruses before they reach your network. By routing inbound and outbound email through our data centers, your administrator can activate robust security policies that keep your organization secure and compliant.

• Stop spam, viruses, phishing, denial of service (DoS), directory harvest attacks (DHA), and other attacks
• Ensure no delays, message loss or disruptions to email service with our patented real-time, pass-through architecture
• Allow end users to manage their own spam in an efficient manner
• Create content-based policies for inbound and outbound traffic (including pre-defined lexicons for social security and credit card numbers)
• Guarantee email arrives even if your email servers go down with spooling
• Encrypt domain-to-domain messaging using standard SSL or TLS protocols
  Learn about more encryption options 
• Enable directory synchronization with your LDAP user data to ensure new users are automatically provisioned
• 99.999% availability for message processing and capacity to handle billions of transactions a day

Deploy rapidly and maintain effortlessly

• Carlstone implements quickly, in most cases within 24 hours with no hardware or software to install
• Performance is monitored 24/7 by Google, and the service is SAS 70 audited
• Updates are released automatically at no additional cost and with no installation effort required