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Configuring Cloud Pre-Filter
Note: You do not need to specify a priority for an MX record destination server. The
priority for the MX record will be resolved automatically.
9. Click Add. The Step 1: Specify Domain and Destination Server screen appears,
with IMSVA’s details in the Destination Server list.
Step 2: Configuring Condition Settings
Approved and Blocked Senders
Messages from approved senders are able to bypass the Email Reputation service and
antispam filters, while messages from blocked senders are prevented from reaching
recipients.
Specifying an IP address will block or approve all messages from that IP address.
The approved lists take precedence over the blocked list, the Email Reputation filter, and
the antispam filter. All messages from addresses that match the addresses in the
approved list are not processed by these filters.
Note: The Approved list from IP Filter or Spam rules can be imported to the Cloud
Pre-Filter Approved list.
Valid Recipients
This feature works by comparing the list of users on your LDAP servers to a list of your
users on Cloud Pre-Filter. The Cloud Pre-Filter list of your users is generated by
synchronizing with your LDAP servers.
Use the valid recipient check to block all email that does not have a recipient on your
domain. This prevents malicious email messages and spam from reaching your network.
Tip: Trend Micro recommends enabling scheduled synchronization to ensure all vaild email
reaches your network. LDAP servers must be configured before enabling the valid
recipient check and scheduled synchronization.
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