[bp/r52618][FIX]Keep same behavior as in other areas of tiki: mail errors are added to the syslog regardless of the preference to log mail in tiki logs.

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@52619 b456876b-0849-0410-b77d-98878d47e9d5