Hosted Exchange Services vs In House Mail Servers

Hosted Exchange Server

In-House Mail Server

Security

• Perimeter Protection
• Multiple Virus Filters.
• Automatic TLS Encryption.

• Email threats penetrate the client
infrastructure.

Cost

No capital Investment.

Equipment purchases required.

Demand on
Resources

• Liberates Bandwidth.
• Reduces traffic on network
infrastructure (routers, firewalls,
gateways, mailservers).

• Uses additional bandwidth and storage.
• Increases the load on network
infrastructure.

Training

• No Training Required.

• Training Necessary.

Effectiveness

• Stops up to 99% of unwanted email.
• Protects from viruses, phishing, DoS, and hijacking threats.

• Requires constant adjustments to be successful.
• In-house resources are continually used to maintain effectiveness.

Risk

• Outsourced disaster recovery option.
• Reduces risk of loss.
• No binding contracts.

• Unforeseen disaster recovery depends on in-house systems.
• Service and maintenance contracts are generally required.

Set-UP

• No installation or configuration required.
• Removes the burden of email security from overworked IT staff.
• Zero end user disruption.

• Installation can be complex.

Support

• 9x5 customer support.

• Varies depending on the support contracts available.

Admin Control

• Web-based user interface.

• Local control.

Maintenance

• No proprietary systems to install or maintain.
• Setup, maintained and managed 24x7x365 by experts.

• Requires development, maintenance and retention of in-house expertise.
• May require system licenses or subscription updates.

Reliability

• Specialized email processing infrastructure.
• Mail bagging for up to 48 Hrs .
• Load balancing.
• Fail-over Support.
• SMTP flow management.

• Depends on reliability of in-house infrastructure.

Rule Updates

• Rules updated more than 20,000 times per day.

• Rules generally updated once a day