Emails are detected as spam by SMG and action for Spam policy is ‘Hold message in Spam Quarantine’, however delivery to the Quarantine Folder failed unexpected.
While doing telnet testing to Controlcenter port 41025, connection closed by foreign host.
[[email protected] root]# telnet 188.8.131.52 41025
Connected to 184.108.40.206.
Escape character is '^]'.
220 SMTP service ready
mail from:[email protected]
rcpt to:[email protected]
354 Start mail input; end with <CRLF>.<CRLF>
subject:shutdown the ldap server and try drop msg to quarantine
failure is expected.
421 Closing Connection
Connection closed by foreign host.
Below error can be seen from BrightmailLog.log:
ERROR - netscape.loda.LDAPException: failed to connect to server ldap://10.0.16.144:389
ERROR - Attempt to resolve [email protected] failed due to LDAP server error
ERROR - Resolving email alias for : [email protected] failed to connnect to server ldap://10.0.16.144:389
Ldap server unreachable is the root cause for hold message to quarantine failure.
Customer need to recover the communication between SMG and LDAP source.
Workaround is to disable LDAP source in SMG.