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InterScanTM Messaging Security Virtual Appliance - Online Help ...

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Trend Micro InterScan <strong>Messaging</strong> <strong>Security</strong> <strong>Virtual</strong> <strong>Appliance</strong> Administrator’s Guide<br />

Understanding Email Encryption<br />

7-2<br />

Trend Micro Email Encryption encrypts email messages using Indentity-Based<br />

Encryption (IBE). For example, user1@a.com sends an email message with private<br />

information to user2@b.com. The domain a.com is registered with IMSVA for<br />

encryption and decryption. A policy rule enables outgoing email messages containing<br />

private information to be encrypted. IMSVA encrypts the email message sent to this<br />

user2@b.com.<br />

FIGURE 7-1. IMSVA Email Encryption<br />

Tip: Before using Trend Micro Email Encryption, Trend Micro recommends that an NTP<br />

server is used with IMSVA. This ensures standard time and date data for IMSVA.

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