HP Email Firewall Appliance Series Manual do Utilizador descarregar pdf (Página 43)

SMTP Security

Specific Site Policy

This option supports the specification of exceptions to the default

settings for SSL/TLS. For example, you may need to exempt a mail server

from using SSL/TLS because of lack of TLS support.

To exempt a system, specify the IP Address or FQDN (Fully Qualified

Domain Name) of the remote mail server in the

Add/Update Site

field.

Select Don't Use TLS from the dropdown box and click the Update

button. The exempted mail server will be listed under the

Specific Site

Policy

TLS options include the following:

■ Don't Use TLS — TLS Mail Delivery is never used with the specified

system.

■ May Use TLS — Use TLS if the specified system supports it.

■ Enforce TLS — Deliver to the specified system only if a TLS connection

with a valid CA-signed certificate can be established.

■ Loose TLS — Similar to

Enforce TLS

but will accept a mismatch

between the specified server name and the Common Name in the

certificate

See “SSL Certificates” on page 94 for more information on installing

certificates.

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HP Email Firewall Appliance Series Manual do Utilizador Página 43