formats aren't really used that often anymore. I'd suggest something like:

#!/path/to/perl -w
open LIST,"/path/to/file/sorted" or die "/path/to/file/sorted: $!";
open(SENDMAIL, "|/usr/lib/sendmail -oi -t") or die "Died: $!";
print SENDMAIL <<"EOF";
From: Me < Me\@example.com >
To: You < You\@example.com >
Subj: Status of test

Thank you,
Me
UNIX System Administrator
rebel and asic domains
.
EOF
[download]

-Blake