Thereafter EdgeSync continues to run periodically, pushing changes made in
Active Directory to ADAM.
The type of data replicated includes Send Connector configuration, accepted domains, remote domains,
message classifications, safe senders lists, Recipients, Transport Layer Security (TLS) send and receive
domain secure lists, an internal SMTP servers list, and the list of Hub Transport servers subscribed to the
Active Directory site. Most of the data replicated, such as the Recipient information, is translated, hence
if the Edge Transport server and ADAM are compromised, no Recipient information is exposed. Various
types of data are replicated at different intervals. Configuration data is replicated every hour, Recipient
data is replicated every 4 hours, and topology information is replicated every 5 minutes.
If edge subscription and EdgeSync are not configured, you cannot use the Recipient lookup feature or
safelist aggregation.
After the edge subscription process completes, all the Hub Transport servers that are installed in that
Active Directory site at that time can participate in the EdgeSync process. What happens if one of these
Hub Transport servers is removed or if a new Hub Transport server is added to the site? If a Hub
Transport server is removed, all the other Hub Transport servers continue to participate in the EdgeSync
process.
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