diff --git a/ChangeLog b/ChangeLog
index b8daa92..c8db122 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -2,6 +2,11 @@ yapfaq 1.1.0 (unreleased)
   * --test: Set Supersedes and don't modify Message-ID if -o is set.
   * --test: Force -o if -n is not set.
   * Add conversion script for old status files.
+  * Accept a posting-frequency of "never", too.
+  * Check for illegal headers and stop posting, if found.
+  * Disabled projects must be posted, if forced.
+  * Warn of unencoded 8bit characters in header or body if -d is set.
+  * Update POD.
 
 yapfaq 1.0.1 (2025-01-24)
   * Add %t placeholder for Message-ID (feature parity with 0.9).
diff --git a/bin/yapfaq.pl b/bin/yapfaq.pl
index be517c0..3c018d1 100755
--- a/bin/yapfaq.pl
+++ b/bin/yapfaq.pl
@@ -412,6 +412,17 @@ sub BuildPosting {
     return '';
   }
 
+  # check for illegal headers
+  my $FoundIllegalHeader = 0;
+  foreach (qw/Date User-Agent X-Newsreader X-Mailer Injection-Date
+    Injection-Info NNTP-Posting-Date NNTP-Posting-Host X-Trace/) {
+    if ($Header{lc($_)})  {
+      warn "W: $_ header may not be set in '$HeaderFile'.\n";
+      $FoundIllegalHeader = 1;
+    }
+  }
+  return '' if $FoundIllegalHeader;
+
   # add Date:
   push @Headers, 'Date: ' . $TD->strftime('%a, %d %b %Y %H:%M:%S %z') . "\n";
   # add missing Message-ID:
@@ -419,6 +430,16 @@ sub BuildPosting {
   # add User-Agent
   push @Headers, "User-Agent: $NAME/$VERSION\n";
 
+  # check for unencoded 8bit characters in header or body in --debug mode
+  # taken from tinews.pl
+  if ($Config{'debug'}) {
+    print "- Raw 8-bit data in headers.\n" if (grep {/[\x80-\xff]/} @Headers);
+     # check for MIME headers and warn for 8bit characters in body if missing
+    if (!defined($Header{'mime-version'}) || !defined($Header{'content-type'})) {
+      print "- 8bit data in body without MIME-headers.\n" if (grep {/[\x80-\xff]/} @Body);
+    }
+  }
+
   # parse pseudo headers from body
   my ($InRealBody,$LastModified,$PostingFrequency);
   foreach (@Body) {
@@ -515,8 +536,8 @@ sub BuildPosting {
     }
   }
 
-  # not due if Posting-Freqency is "none"
-  if ($PostingFrequency =~ /none/) {
+  # not due if Posting-Freqency is "none" or never
+  if ($PostingFrequency =~ /none|never/ && !$OptForce) {
     print "... is disabled.\n" if $Config{'verbose'} or $Config{'debug'};
     return '';
   }
@@ -740,7 +761,14 @@ files need to be in B<datadir>.
 Needs to have at least I<From:>, I<Subject:> and I<Newsgroups:> and
 can contain all other headers that the posting should have. Headers
 must conform to RFC 5536 and RFC 5322 and use MIME encoded words for
-8bit characters. B<yapfaq> won't convert headers.
+8bit characters. B<yapfaq> won't convert headers, but will warn of
+unencoded 8bit characters in B<--debug> mode. Longer headers should
+be folded; B<yapfaq> won't fold headers.
+
+The headers file must not contain any of the following headers:
+I<Date:>, I<User-Agent:>, I<X-Newsreader:>, I<X-Mailer:>,
+I<Injection-Date:>, I<Injection-Info:>, I<NNTP-Posting-Date:>,
+I<NNTP-Posting-Host:> or I<X-Trace:>.
 
 I<Subject:> may contain a I<%LM> placeholder that will be replaced
 with the I<Last-modified:> pseudo-header from the text file
@@ -802,7 +830,8 @@ I<Last-modified:> and I<Posting-frequency> will be evaluated by
 B<yapfaq>.
 
 If your content contains 8bit characters, you'll need suitable MIME
-headers in your headers file.
+headers in your headers file.  B<yapfaq> will warn of unencoded 8bit
+characters with missung MIME headers in B<--debug> mode.
 
 B<Example text file with pseudo-headers>