Trustifi Customer Case Study: C3 Complete

Background

C3 Complete, a U.S.-based Managed Service Provider (MSP), supports clients across legal, financial, healthcare, and other regulated industries. As their client base grew, they needed a more effective and scalable email security solution.

After evaluating Trustifi against previous security software , C3 Complete made the decision to migrate its entire customer base to Trustifi, improving threat detection, strengthening outbound protection, and standardizing security across thousands of seats.

The Challenge

C3 Complete was managing email security across a multi-tenant client environment using previous security software . Over time, several issues became clear:

• Spam, graymail, and phishing emails were getting through
• End users, including executives, were losing confidence in filtering accuracy
• Limited outbound protection for sensitive data
• Increasing pressure from compliance requirements across industries like legal and finance

Why Trustifi?

C3 Complete evaluated Trustifi alongside our security software and selected Trustifi based on performance and usability.

Key Reasons

Key reasons for the switch included:

• More effective spam and phishing detection
• Better graymail filtering
• Built-in outbound protection including encryption and data loss prevention
• A cleaner and more intuitive user experience

The Solution

C3 Complete implemented Trustifi through a phased rollout:

• Internal testing and pilot deployments
• Gradual migration of clients as contracts renewed
• Full transition away from our previous security software across their customer base

Trustifi is now the standard email security platform across C3 Complete’s managed environments.

Results

Stronger Threat Protection

Trustifi improved detection and prevention across environments:

• Blocked phishing attacks that previously reached inboxes
• Reduced spam and graymail volume

Improved Security for High-Risk Users

Executives and finance leaders, frequent phishing targets, saw immediate benefits:

• Reduced exposure to credential-based attacks
• Increased confidence in email security

Better End User Experience

• Spam and low-priority messages consolidated into a single daily digest
• Less inbox clutter and fewer interruptions
• Improved productivity across teams

Expanded Security Capabilities

Trustifi introduced capabilities that were not previously available:

• Outbound email encryption
• Data loss prevention for sensitive information
• Protection aligned with compliance requirements

Scalable MSP Operations

• Multi-tenant management aligned with C3 Complete’s service model
• Standardized security stack across clients
• Easier positioning and selling of a single platform

Fast Time to Value

Customer Experience and Partnership

C3 Complete highlighted the strength of the partnership with Trustifi:

• Responsive support and access to engineering resources
• Assistance with demos and customer conversations
• Strong collaboration across teams

Use Case Spotlight: Legal Clients

C3 Complete supports multiple law firms in South Florida ranging from 30 to 60 users. These organizations operate in highly regulated environments and are frequent targets for cyberattacks.

Prior to working with C3 Complete, both firms had experienced security incidents, including ransomware exposure.

With Trustifi, they now benefit from:

• Stronger phishing and threat protection
• Secure outbound communications
• Reduced risk when handling sensitive client data

Conclusion

By replacing our previous security software with Trustifi, C3 Complete modernized its email security offering and created a scalable foundation for growth.

Trustifi now enables C3 Complete to deliver stronger protection, improve user experience, and standardize security across its entire multi-tenant environment.