You upgrade to Symantec Brightmail Gateway version 9.0.0-20 and the Brightmail Engine and MTA will not start.
Migration has finished successfully, but after reboot the MTA and Brightmail Engine won't start and cannot be started.
MTA log (maillog):
2010 Mar 20 04:02:25 HKT (info) runner: Starting job bmserver.
2010 Mar 20 04:02:25 HKT (err) ecelerity:  [error]: smsbatv.cc-00532: Failed to initialize DDS. Error code:21018
2010 Mar 20 04:02:25 HKT (err) ecelerity:  [error]: smsbatv.cc-01919: Failed to initialize policies and user database. Error code:21018
2010 Mar 20 04:02:25 HKT (err) ecelerity:  module post_init failed: smsbatv
(Log data truncated for clarity purposes)
2010 Mar 20 04:02:25 HKT (err) ecelerity: [Brightmail] (ERROR:11288.3083266784):  Error while trying to rename file (null) to /data/scanner/stats/mc_stats.1269028945.fw.xml: Resource temporarily unavailable.
2010 Mar 20 04:02:25 HKT (err) runner: Job mta process 11288 exited, with exit status 255 (0xFF00).
2010 Mar 20 04:02:26 HKT (err) runner: Job bmserver process 11356 exited, with exit status 1 (0x0100)
Brightmail Engine log (bmserver_log):
2010-03-16T13:38:17+08:00 (ERROR:28300.3062241760):  Unable to initialize the data directory service client.
2010-03-16T13:38:17+08:00 (NOTICE:28300.3062241760):  Could not create engine context (error 0x3000008).
Symantec Brightmail Gateway version 8.0.3 contains special fields within the scanner configuration file to prepare for migration of existing LDAP data sources to the new Directory Data Source component on Symantec Brightmail Gateway 9.0.0-20. The following conditions will cause the aforementioned symptoms in Symantec Brightmail Gateway 9.0.0-20 post upgrade: i) If an LDAP synchronization source had previously been created and removed using the command line interface command "clear syncdata" rather than through the Symantec Brightmail Gateway GUI. ii) If a new LDAP source is created pre-migration on Symantec Brightmail 8.0.3 which does not contain an LDAP synchronization source.
Create a new Directory Data Source for "Address Resolution" or enable "Address Resolution" within the migrated Directory Data Source, then start the MTA.