User guide

Communications Requirements Licensed Customer Confidential
14 Email Continuity Administrator Guide version 6.5 (1st ed.)
3 For end users accessing the web-mail interface, supported browsers are
Internet Explorer (v6 or 7) or Firefox.
Firewall Requirements
Most organizations’ networks include a firewall that restricts both outbound and
inbound traffic based on specific rules. Make any necessary adjustments to your
firewall’s configuration to ensure that it allows outbound traffic for the ESS server
to the location-specific IP addresses on port 443.
Proxy Requirements
If you use a proxy server, set the proxy server rules to allow communication from
the ESS server to the location-specific IP addresses provided by Support.
SMTP Message Gateway Requirements
If you use an SMTP gateway server, ensure its configuration accepts inbound
messages from the location-specific IP addresses provided by Support. If your
gateway server blocks all inbound messages that use one of your domains in the
From: field, add an exception to this rule to accept messages originating from the
location-specific IP addresses. For example, if your domain is company.com and
you block all inbound mail with an SMTP address of [e-mail] as
spam, the exclusion list for this policy should include the location-specific IP
addresses.
Gateway Requirements
Configure your gateway to failover automatically to the location-specific message
transfer agent (MTA).
Configure your corporate mailhost to:
1 Accept inbound SMTP connections from the IP addresses provided by
Support.
2 Allow the IP addresses provided by Support to be valid sending IP
addresses.