diff --git a/ChangeLog b/ChangeLog
index 1a4a511..20fd80a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+yapfaq 1.0.1 (unreleased)
+* Add %t placeholder for Message-ID (feature parity with 0.9).
+* Remove debugging code.
+
 yapfaq 1.0.0 (2025-01-23)
 * Complete rewrite.
 * Add POD.
diff --git a/bin/yapfaq.pl b/bin/yapfaq.pl
index 89ae88d..f88f014 100755
--- a/bin/yapfaq.pl
+++ b/bin/yapfaq.pl
@@ -19,7 +19,7 @@
 # It can be redistributed and/or modified under the same terms under 
 # which Perl itself is published.
 
-my $VERSION = "1.0.0";
+my $VERSION = "1.0.1-unreleased";
 (my $NAME = $0) =~ s#^.*/##;
 
 use utf8;
@@ -32,8 +32,6 @@ use Path::Tiny; # CPAN
 use Getopt::Long qw(GetOptions);
 Getopt::Long::config ('bundling');
 
-use Data::Dumper;
-
 # configuration #######################
 # may be overwritten via ~/.yapfaqrc or command line
 my %Config;
@@ -264,7 +262,7 @@ sub AddDuration {
 
 ### ------------------------------------------------------------------
 ### return a hash of all headers (ignoring duplicate headers)
-# taken and modified from tinews.pl
+# taken and modified from pgpverify.pl
 sub ParseHeaders {
   my @Headers = @_;
   my (%Header, $Label, $Value);
@@ -464,15 +462,18 @@ sub BuildPosting {
     # %m  current month
     # %d  current day
     # %p  PID
+    # %t  timestamp (seconds since epoch)
     if (/^Message-ID: /i) {
       my $TDY = $TD->strftime('%Y');
       my $TDM = $TD->strftime('%m');
       my $TDD = $TD->strftime('%d');
+      my $TimeStamp = time;
       $_ =~ s/\%n/$Project/g;
       $_ =~ s/\%y/$TDY/g;
       $_ =~ s/\%m/$TDM/g;
       $_ =~ s/\%d/$TDD/g;
       $_ =~ s/\%p/$$/g;
+      $_ =~ s/\%t/$TimeStamp/g;
       # add random part in test mode
       if ($OptTest) {
         my $random = sprintf("%08X", rand(0xFFFFFFFF));
@@ -747,11 +748,12 @@ curly brackets and spaces) is removed.
 If a I<Message-ID:> header is present, placeholders in that header
 will be replaced: I<%n> with the project name, I<%y> with the current
 year (YYYY), I<%m> with the current month (MM), I<%d> with the
-current day (DD) and I<%p> with the current process ID (PID) of
-B<yapfaq>. If no I<Message-ID:> header is present, the I<Message-ID>
-will be generated with the hostname of the system B<yapfaq> is
-running on and I<%n-%y-%m-%d> as template for the left hand side. If
-the I<Message-ID:> header in the headers file does not contain
+current day (DD), I<%p> with the current process ID (PID) of
+B<yapfaq> and I<%t> with a timestamp timestamp (seconds since epoch).
+If no I<Message-ID:> header is present, the I<Message-ID> will be
+generated with the hostname of the system B<yapfaq> is running on and
+I<%n-%y-%m-%d> as template for the left hand side. If the
+I<Message-ID:> header in the headers file does not contain
 placeholders, the next repost will most probably fail.
 
 If an I<Expires:> header is present, it must contain a time period of