#! perl
use strict;
use warnings;

<DATA>;     # Discard header

while (<DATA>)
{
    chomp;
    my @tokens = split /\s+/;
    my @fields;

    for (my $i = 0; $i < @tokens; ++$i)
    {
        if ($i == 2)
        {
            my $from = $tokens[$i];

            until ($tokens[++$i] =~ m! ^ \d{1,2} / \d{1,2} $ !x)
            {
                $from .= ' ' . $tokens[$i];
            }

            push @fields, $from;
        }

        push @fields, $tokens[$i];
    }

    print join('|', @fields), "\n";    
}

__DATA__
REQID     DEST             FROM                     DATE   TIME    nPages  RCV
138454  mail_room     Marco's Pizza         12/26 21:52    1  rcv     
138446  custsvc      973 618 0577          12/26 18:44    1  rcv     
138445  county2       spam                  12/26 18:41    3  rcv     
138444  custsvc      spam                  12/26 18:30    1  rcv
138439  county2       7182737253            12/26 17:54    2  rcv     
138438  county2       Acme Products, Inc.   12/26 17:52    1  rcv