Never mind. I found the answer from previous documentation on my hard drive. For anyone else having this problem on Linux/Apache, you have to edit the file 'sendmail.cf'. There is more than one way to edit this file to get it to work, but I did a simple edit that works for me....
##################################
Format of headers BEFORE
##################################
H?P?Return-Path: <$g>
HReceived: $?sfrom $s $.$?($?s$|from $.$)
$.$?{auth_type}(authenticated)
$.by $?{if_name}${if_name}$|$j$. ($v/$Z)$?r with $r$. id $i$?u
for $u; $|;
$.$b
H?D?Resent-Date: $a
H?D?Date: $a
H?F?Resent-From: $?x$x <$g>$|$g$.
H?F?From: $?x$x <$g>$|$g$.
H?x?Full-Name: $x
HPosted-Date: $a
H?l?Received-Date:
END END END END END
#########################################
Format of headers AFTER CHANGE
#########################################
Change only one line -- HReceived:
#########################################
H?P?Return-Path: <$g>
HReceived🙁from whatever@yourdomain.com)
$.$?{auth_type}(authenticated)
$.by $?{if_name}${if_name}$|$j$. ($v/$Z)$?r with $r$. id $i$?u
for $u; $|;
$.$b
H?D?Resent-Date: $a
H?D?Date: $a
H?F?Resent-From: $?x$x <$g>$|$g$.
H?F?From: $?x$x <$g>$|$g$.
H?x?Full-Name: $x
HPosted-Date: $a
H?l?Received-Date: $b
H?M?Resent-Message-Id: <$t.$i@$j>
H?M?Message-Id: <$t.$i@$j>
