SMTP Security (IIS 6.0)

You can specify security settings for a Simple Mail Transfer Protocol (SMTP) virtual server on the two security tabs. These settings apply to all domains on the virtual server.

TabSettings

Security

Designates the user accounts that have operator permissions to run the SMTP service. Operators have the ability to configure SMTP virtual server properties.

Access

Contains settings to require authentication and the use of Transport Layer Security (TLS) for all incoming connections. You can also grant or deny access to specific computers or networks.

This section includes the following information:

Setting Operator Permissions: Describes how to assign and remove operator permission on SMTP virtual servers.

Requiring Authentication for Incoming Connections: Describes how to disable authentication for incoming messages, set clear text authentication for incoming messages, and use integrated Windows authentication to authenticate incoming messages.

Requiring Authentication for Outbound Messages: Describes how to disable authentication for outgoing messages, set Basic authentication for outgoing messages, and set Integrated Windows authentication for outgoing messages.

Setting IP Access Restrictions to Servers: Describes how to set IP address access restrictions.

Configuring SMTP Virtual Server Relay Restrictions: Describes how to add and remove relay restrictions from an SMTP virtual server.

Requiring TLS Encryption: Describes how to create and manage key certificates and how to set TLS encryption levels for the server.



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