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Licensed Customer Confidential Communications Requirements

Email Continuity Administrator Guide version 6.5 (1st ed.) 15

Be sure that you provide the hostname or IP address of your mailhost(s) to

Support so that the data center can be configured to send email directly to your

organization.

Figure 2-1 Mail Routing with MessageLabs

Mail Routing Inbound—Store and Forward

If your primary mail system has gone down, and your organization has not

activated Email Continuity, MessageLabs performs a store and forward service

and attempts to deliver your mail.

Similarly, if your organization performs a partial activation, this feature allows you

to designate hostnames to use to deliver mail to users who are not active on Email

Continuity.

To configure email routing for inbound mail, see "

Routing for Forwarded Mail" on

page 146

Figure 2-2 Routing for Inbound (Forwarded) Mail

1. Configure MessageLabs to send mail to Email Continuity when the primary mailhost is down by listing the

Email Continuity MTA as a backup mail record within the MessageLabs configuration.

2. Configure Email Continuity to send mail directly to the primary mailhost instead of through the MX record (to

prevent mail looping).

3. Configure the firewall to allow inbound SMTP traffic (port 25) for the Email Continuity servers. This rule is the

same as the firewall rule that allows inbound mail from MessageLabs.

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Dell EMS Uživatelská příručka Strana 31