Notes:

Changes in behavior of SMTLNAM and SMTLDNAM debug options
---------------------------------------------------------
This patch enables multi-channel SMTP logging.  Previously, 
when debug logging was enabled for SMTP receiving or sending, 
only one incoming or outgoing channel (respectively) would be
enabled.  Therefore, only one log file would be generated.

With this patch, one log file will be created per incoming or
outgoing task.  Whatever filename is specified in the
SMTLNAM or SMTDLNAM parameter will be used, but its extension
(if any) will be removed, and a new extension appended.
