c:\@Work\Perl\monks>perl -wMstrict -le
"print 'perl version: ', $];
 ;;
 my $rec =
   'Jun 12 10 mail (sender@sender.com) - (recip1@domain.com),(recip2@domain.com) 1.889 25623, queued_as: B67837C0052 Subject goes here Sender(sender@sender.com)';
 print qq{'$rec'};
 ;;
 my @F = split /-/, $rec;
 $F[1] =~ s/[()]//g;
 my $fixed = join '-', @F;
 print qq{'$fixed'};
"
perl version: 5.008009
'Jun 12 10 mail (sender@sender.com) - (recip1@domain.com),(recip2@domain.com) 1.889 25623, queued_as: B67837C0052 Subject goes here Sender(sender@sender.com)'
'Jun 12 10 mail (sender@sender.com) - recip1@domain.com,recip2@domain.com 1.889 25623, queued_as: B67837C0052 Subject goes here Sendersender@sender.com'