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Front cover - IBM Redbooks

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514 Lotus Security Handbook<br />

Prefix a percent sign (%) to specify the name of a Domino domain to which<br />

mail can be sent; for example, enter %AcmeEast to specify that the server<br />

can send mail to the Domino domain AcmeEast.<br />

► Deny messages to be sent to the following external Internet domains<br />

Internet domains to which Domino will not relay messages. An asterisk (*) in<br />

this field prevents Domino from relaying messages to any external Internet<br />

domain.<br />

Domino denies only messages destined for recipient addresses in the<br />

specified domains. All other messages may relay.<br />

For example, if you enter abc.com in the field, Domino relays messages to<br />

recipients in all external Internet domains except abc.com. Domino denies<br />

messages for recipients in the abc.com domain.<br />

To name a domain explicitly, prefix an @ sign to the entry. For example, if you<br />

enter @xyz.com, the server rejects messages addressed to users if the<br />

domain part of the address matches xyz.com exactly, such as<br />

user@xyz.com, but allows messages to relay to other domains that end in<br />

xyz.com, such as user@server.xyz.com.<br />

Prefix a percent sign (%) to specify a Domino domain name; for example,<br />

entering %AcmeEast specifies the Domino domain AcmeEast. This lets you<br />

prevent SMTP users from sending mail to certain internal Domino domains or<br />

even foreign domain servers, such as FAX systems.<br />

► Allow messages only from the following Internet hosts to be sent to<br />

external Internet domains<br />

Specifies the hosts or domains that the Domino SMTP service allows to relay<br />

outbound Internet mail. If this field contains valid entries, Domino allows only<br />

servers matching these entries to relay. Message relays from other servers<br />

are denied.<br />

Enter host names or IP addresses to designate the sites that are authorized<br />

to use Domino to relay messages to recipients outside your local Internet<br />

domain. For example, if you enter lotus.com or ibm.com® in the field, Domino<br />

accepts messages for recipients in external Internet domains only from<br />

servers with host names that end in lotus.com or ibm.com. Domino rejects<br />

messages for external recipients from any server not listed in this field.<br />

► Deny messages from the following Internet hosts to be sent to external<br />

Internet domains<br />

Specifies the hosts or domains that the Domino SMTP service does not allow<br />

to relay outbound Internet mail. If this field contains valid entries, Domino<br />

denies message relays from servers matching those entries. Domino allows<br />

message relays from all other servers.

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