When trying to configure TLS communication between Email Prevent and MTA the TLS handshake never completes and the following error is found in the SMTPOperational log on the detection server:
(SMTP_CONNECTION.XXXX) Forward connection error (tid=XX cid=Y mta=<> reason=Channel is null in ESMPPerr:recv)
SMTP Prevent running in forwarding or reflecting mode
(SMTP_CONNECTION.5203) Forward connection error (tid=XX cid=YY mta=<> reason=Channel is null in ESMPPerr:recv)
The keystore password may not be set on the Detection server's configuration. This prevents the DLP services from being able to access the keystore when a certificate exchange needs to happen between servers.
Log onto the Enforce console that manages Network Prevent for Email Server.
Select System > Servers > Overview from the main menu bar.
Click the name of the Network Prevent for Email Server you want to configure.
In the Security Configuration section, fill in the fields as follows:
Enter the correct password for the keystore file
Confirm Keystore Password
Re-enter the keystore password
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