Index: src/routes/posts.js
===================================================================
--- src/routes/posts.js	(revision 7f46112b41e93dfac9241870553cacfe9f9c7dfb)
+++ src/routes/posts.js	(revision 41a7637a2e5b561b6a96b9a2791ddd41145c13c3)
@@ -518,6 +518,7 @@
   const site = res.locals.site;
   const uri = (req.query.uri || '').toString();
+  const sent = !!req.query.sent;
   let target = null;
-  try { target = await ActivityPubService.resolveRemoteNote(uri); } catch { /* ignore */ }
+  if (!sent) { try { target = await ActivityPubService.resolveRemoteNote(uri); } catch { /* ignore */ } }
   renderPage(req, res, 'pages/authorize-interaction', {
     pageTitle: 'Reageer via de fediverse',
@@ -525,20 +526,20 @@
     uri,
     target,
+    sent,
     siteTitle: site ? site.title : '',
   });
 });
 
-router.post('/authorize_interaction', requireSiteManager, async (req, res) => {
+router.post('/authorize_interaction', requireSiteManager, (req, res) => {
   const site = res.locals.site;
   const uri = (req.body.uri || '').toString();
   const text = (req.body.text || '').toString();
   if (site && uri && text.trim()) {
-    try {
-      const parent = await ActivityPubService.resolveRemoteNote(uri);
-      if (parent) await ActivityPubService.deliverReply(site, { postId: '', postSlug: null, parent, text });
-    } catch (e) { console.warn('[AP] remote reply failed:', e.message); }
-  }
-  // Send them to the post they replied to so they can see the thread.
-  res.redirect(uri && /^https?:\/\//i.test(uri) ? uri : (res.locals.siteUrlBase || '/'));
+    // Resolve + deliver in the background so Send responds instantly.
+    ActivityPubService.resolveRemoteNote(uri)
+      .then((parent) => parent && ActivityPubService.deliverReply(site, { postId: '', postSlug: null, parent, text }))
+      .catch((e) => console.warn('[AP] remote reply failed:', e.message));
+  }
+  res.redirect('/authorize_interaction?sent=1&uri=' + encodeURIComponent(uri));
 });
 
Index: src/services/i18n.js
===================================================================
--- src/services/i18n.js	(revision 7f46112b41e93dfac9241870553cacfe9f9c7dfb)
+++ src/services/i18n.js	(revision 41a7637a2e5b561b6a96b9a2791ddd41145c13c3)
@@ -109,5 +109,5 @@
     'fedi.heading': 'Vanuit de fediverse', 'fedi.likes': 'sterren', 'fedi.boosts': 'boosts', 'fedi.replies': 'Reacties uit de fediverse',
     'fedi.reply': 'Reageer', 'fedi.reply_ph': 'Je antwoord aan de fediverse…', 'fedi.send': 'Versturen', 'fedi.you': 'Jij',
-    'fedi.remote_title': 'Reageer via de fediverse', 'fedi.remote_reply': 'Reageer via de fediverse', 'fedi.remote_prompt': 'Je fediverse-adres (bv. @jij@mastodon.social):', 'fedi.remote_notfound': 'Kon die post niet ophalen. Plak de volledige post-URL:', 'fedi.remote_load': 'Ophalen', 'fedi.remote_replying_to': 'Je reageert op', 'fedi.remote_as': 'Wordt verzonden als {site}.', 'fedi.remote_view_original': 'Bekijk de hele post + reacties op de bron →', 'fedi.remote_reply_short': 'via de fediverse',
+    'fedi.remote_title': 'Reageer via de fediverse', 'fedi.remote_reply': 'Reageer via de fediverse', 'fedi.remote_prompt': 'Je fediverse-adres (bv. @jij@mastodon.social):', 'fedi.remote_notfound': 'Kon die post niet ophalen. Plak de volledige post-URL:', 'fedi.remote_load': 'Ophalen', 'fedi.remote_replying_to': 'Je reageert op', 'fedi.remote_as': 'Wordt verzonden als {site}.', 'fedi.remote_view_original': 'Bekijk de hele post + reacties op de bron →', 'fedi.remote_reply_short': 'via de fediverse', 'fedi.remote_sent_title': 'Verzonden ✅', 'fedi.remote_sent': 'Je reactie is onderweg naar de fediverse en verschijnt zo bij de ontvanger.', 'fedi.remote_back': '← Terug naar je site',
     'comments.to_start': 'om de conversatie te starten.',
     'comments.reply': 'Reageer', 'comments.delete': 'Verwijder', 'comments.cancel': 'Annuleren',
@@ -1104,5 +1104,5 @@
     'fedi.heading': 'From the fediverse', 'fedi.likes': 'favourites', 'fedi.boosts': 'boosts', 'fedi.replies': 'Replies from the fediverse',
     'fedi.reply': 'Reply', 'fedi.reply_ph': 'Your reply to the fediverse…', 'fedi.send': 'Send', 'fedi.you': 'You',
-    'fedi.remote_title': 'Reply via the fediverse', 'fedi.remote_reply': 'Reply via the fediverse', 'fedi.remote_prompt': 'Your fediverse address (e.g. @you@mastodon.social):', 'fedi.remote_notfound': 'Could not fetch that post. Paste the full post URL:', 'fedi.remote_load': 'Fetch', 'fedi.remote_replying_to': 'Replying to', 'fedi.remote_as': 'Sent as {site}.', 'fedi.remote_view_original': 'View the full post + comments on the source →', 'fedi.remote_reply_short': 'via the fediverse',
+    'fedi.remote_title': 'Reply via the fediverse', 'fedi.remote_reply': 'Reply via the fediverse', 'fedi.remote_prompt': 'Your fediverse address (e.g. @you@mastodon.social):', 'fedi.remote_notfound': 'Could not fetch that post. Paste the full post URL:', 'fedi.remote_load': 'Fetch', 'fedi.remote_replying_to': 'Replying to', 'fedi.remote_as': 'Sent as {site}.', 'fedi.remote_view_original': 'View the full post + comments on the source →', 'fedi.remote_reply_short': 'via the fediverse', 'fedi.remote_sent_title': 'Sent ✅', 'fedi.remote_sent': 'Your reply is on its way to the fediverse and will appear for the recipient shortly.', 'fedi.remote_back': '← Back to your site',
     'comments.to_start': 'to start the conversation.',
     'comments.reply': 'Reply', 'comments.delete': 'Delete', 'comments.cancel': 'Cancel',
@@ -2097,5 +2097,5 @@
     'fedi.heading': 'Aus dem Fediverse', 'fedi.likes': 'Favoriten', 'fedi.boosts': 'Boosts', 'fedi.replies': 'Antworten aus dem Fediverse',
     'fedi.reply': 'Antworten', 'fedi.reply_ph': 'Deine Antwort an das Fediverse…', 'fedi.send': 'Senden', 'fedi.you': 'Du',
-    'fedi.remote_title': 'Über das Fediverse antworten', 'fedi.remote_reply': 'Über das Fediverse antworten', 'fedi.remote_prompt': 'Deine Fediverse-Adresse (z.B. @du@mastodon.social):', 'fedi.remote_notfound': 'Beitrag konnte nicht geladen werden. Füge die vollständige Beitrags-URL ein:', 'fedi.remote_load': 'Laden', 'fedi.remote_replying_to': 'Antwort an', 'fedi.remote_as': 'Wird als {site} gesendet.', 'fedi.remote_view_original': 'Ganzen Beitrag + Kommentare an der Quelle ansehen →', 'fedi.remote_reply_short': 'übers Fediverse',
+    'fedi.remote_title': 'Über das Fediverse antworten', 'fedi.remote_reply': 'Über das Fediverse antworten', 'fedi.remote_prompt': 'Deine Fediverse-Adresse (z.B. @du@mastodon.social):', 'fedi.remote_notfound': 'Beitrag konnte nicht geladen werden. Füge die vollständige Beitrags-URL ein:', 'fedi.remote_load': 'Laden', 'fedi.remote_replying_to': 'Antwort an', 'fedi.remote_as': 'Wird als {site} gesendet.', 'fedi.remote_view_original': 'Ganzen Beitrag + Kommentare an der Quelle ansehen →', 'fedi.remote_reply_short': 'übers Fediverse', 'fedi.remote_sent_title': 'Gesendet ✅', 'fedi.remote_sent': 'Deine Antwort ist auf dem Weg ins Fediverse und erscheint gleich beim Empfänger.', 'fedi.remote_back': '← Zurück zu deiner Seite',
     'comments.to_start': 'um das Gespräch zu starten.',
     'comments.reply': 'Antworten', 'comments.delete': 'Löschen', 'comments.cancel': 'Abbrechen',
Index: src/views/pages/authorize-interaction.ejs
===================================================================
--- src/views/pages/authorize-interaction.ejs	(revision 7f46112b41e93dfac9241870553cacfe9f9c7dfb)
+++ src/views/pages/authorize-interaction.ejs	(revision 41a7637a2e5b561b6a96b9a2791ddd41145c13c3)
@@ -1,3 +1,11 @@
 <div class="auth-interact">
+  <% if (typeof sent !== 'undefined' && sent) { %>
+    <h1 class="auth-interact-title"><%= t('fedi.remote_sent_title') %></h1>
+    <p class="auth-interact-note"><%= t('fedi.remote_sent') %></p>
+    <p class="auth-interact-actions">
+      <% if (uri) { %><a class="btn" href="<%= uri %>" target="_blank" rel="nofollow noopener"><%= t('fedi.remote_view_original') %></a><% } %>
+      <a class="btn btn-primary" href="/"><%= t('fedi.remote_back') %></a>
+    </p>
+  <% } else { %>
   <h1 class="auth-interact-title"><%= t('fedi.remote_title') %></h1>
 
@@ -34,4 +42,5 @@
     <p class="auth-interact-note"><%= t('fedi.remote_as', { site: siteTitle }) %></p>
   <% } %>
+  <% } %>
 </div>