Harden Usenet threading and ingress deliveryHEADmain

1 files changed, 1 insertions, 1 deletions

diff --git a/about.html b/about.html
index 766e12e..a3fa187 100644
--- a/about.html
+++ b/about.html
@@ -218,7 +218,7 @@
             <article class="card">
                 <h3>Email or Usenet</h3>
                 <p>For email, the selected recipient is placed inside the encrypted message. For Usenet, the selected newsgroup is preserved and the server-configured Mail-to-News recipient performs SMTP-to-NNTP conversion.</p>
-                <p><strong>References</strong> can link an article to an existing thread. It does not enable fetching or replies.</p>
+                <p><strong>References</strong> accepts one or more Message-IDs and links the article to an existing Usenet thread. The last Message-ID is also emitted as <strong>In-Reply-To</strong>. The separate <strong>Reply-To</strong> field is an optional email response address; neither field enables message retrieval in this send-only service.</p>
             </article>
         </div>
     </section>