backend/src/db/migrate.ts

@@ -368,6 +368,13 @@ async function migrate() {
       )
     `);
 
+    try {
+      await (db as any).run(sql`ALTER TABLE email_logs ADD COLUMN resend_attempts INTEGER NOT NULL DEFAULT 0`);
+    } catch (e) { /* column may already exist */ }
+    try {
+      await (db as any).run(sql`ALTER TABLE email_logs ADD COLUMN last_resent_at TEXT`);
+    } catch (e) { /* column may already exist */ }
+
     await (db as any).run(sql`
       CREATE TABLE IF NOT EXISTS email_settings (
         id TEXT PRIMARY KEY,
@@ -772,6 +779,13 @@ async function migrate() {
       )
     `);
 
+    try {
+      await (db as any).execute(sql`ALTER TABLE email_logs ADD COLUMN resend_attempts INTEGER NOT NULL DEFAULT 0`);
+    } catch (e) { /* column may already exist */ }
+    try {
+      await (db as any).execute(sql`ALTER TABLE email_logs ADD COLUMN last_resent_at TIMESTAMP`);
+    } catch (e) { /* column may already exist */ }
+
     await (db as any).execute(sql`
       CREATE TABLE IF NOT EXISTS email_settings (
         id UUID PRIMARY KEY,

backend/src/db/schema.ts

@@ -243,6 +243,8 @@ export const sqliteEmailLogs = sqliteTable('email_logs', {
   sentAt: text('sent_at'),
   sentBy: text('sent_by').references(() => sqliteUsers.id),
   createdAt: text('created_at').notNull(),
+  resendAttempts: integer('resend_attempts').notNull().default(0),
+  lastResentAt: text('last_resent_at'),
 });
 
 export const sqliteEmailSettings = sqliteTable('email_settings', {
@@ -557,6 +559,8 @@ export const pgEmailLogs = pgTable('email_logs', {
   sentAt: timestamp('sent_at'),
   sentBy: uuid('sent_by').references(() => pgUsers.id),
   createdAt: timestamp('created_at').notNull(),
+  resendAttempts: pgInteger('resend_attempts').notNull().default(0),
+  lastResentAt: timestamp('last_resent_at'),
 });
 
 export const pgEmailSettings = pgTable('email_settings', {

backend/src/lib/email.ts

@@ -1342,6 +1342,61 @@ export const emailService = {
       error: result.error 
     };
   },
+
+  /**
+   * Resend an email from an existing log entry
+   */
+  async resendFromLog(logId: string): Promise<{ success: boolean; error?: string }> {
+    const log = await dbGet<any>(
+      (db as any).select().from(emailLogs).where(eq((emailLogs as any).id, logId))
+    );
+
+    if (!log) {
+      return { success: false, error: 'Email log not found' };
+    }
+
+    if (!log.bodyHtml || !log.subject || !log.recipientEmail) {
+      return { success: false, error: 'Email log missing required data to resend' };
+    }
+
+    const result = await sendEmail({
+      to: log.recipientEmail,
+      subject: log.subject,
+      html: log.bodyHtml,
+      text: undefined,
+    });
+
+    const now = getNow();
+    const currentResendAttempts = (log.resendAttempts ?? 0) + 1;
+
+    if (result.success) {
+      await (db as any)
+        .update(emailLogs)
+        .set({
+          status: 'sent',
+          sentAt: now,
+          errorMessage: null,
+          resendAttempts: currentResendAttempts,
+          lastResentAt: now,
+        })
+        .where(eq((emailLogs as any).id, logId));
+    } else {
+      await (db as any)
+        .update(emailLogs)
+        .set({
+          status: 'failed',
+          errorMessage: result.error,
+          resendAttempts: currentResendAttempts,
+          lastResentAt: now,
+        })
+        .where(eq((emailLogs as any).id, logId));
+    }
+
+    return {
+      success: result.success,
+      error: result.error,
+    };
+  },
 };
 
 // Export the main sendEmail function for direct use

backend/src/routes/emails.ts

@@ -349,6 +349,23 @@ emailsRouter.get('/logs/:id', requireAuth(['admin', 'organizer']), async (c) =>
   return c.json({ log });
 });
 
+// Resend email from log
+emailsRouter.post('/logs/:id/resend', requireAuth(['admin', 'organizer']), async (c) => {
+  const { id } = c.req.param();
+  
+  const result = await emailService.resendFromLog(id);
+  
+  if (!result.success && result.error === 'Email log not found') {
+    return c.json({ error: 'Email log not found' }, 404);
+  }
+  
+  if (!result.success && result.error === 'Email log missing required data to resend') {
+    return c.json({ error: result.error }, 400);
+  }
+  
+  return c.json({ success: result.success, error: result.error });
+});
+
 // Get email stats
 emailsRouter.get('/stats', requireAuth(['admin', 'organizer']), async (c) => {
   const eventId = c.req.query('eventId');

frontend/src/app/admin/emails/page.tsx

@@ -20,6 +20,7 @@ import {
   ChevronLeftIcon,
   ChevronRightIcon,
   XMarkIcon,
+  ArrowPathIcon,
 } from '@heroicons/react/24/outline';
 import toast from 'react-hot-toast';
 import clsx from 'clsx';
@@ -52,6 +53,8 @@ export default function AdminEmailsPage() {
   const [logs, setLogs] = useState<EmailLog[]>([]);
   const [logsOffset, setLogsOffset] = useState(0);
   const [logsTotal, setLogsTotal] = useState(0);
+  const [logsSubTab, setLogsSubTab] = useState<'all' | 'failed'>('all');
+  const [resendingLogId, setResendingLogId] = useState<string | null>(null);
   const [selectedLog, setSelectedLog] = useState<EmailLog | null>(null);
   
   // Stats state
@@ -214,7 +217,7 @@ export default function AdminEmailsPage() {
     if (activeTab === 'logs') {
       loadLogs();
     }
-  }, [activeTab, logsOffset]);
+  }, [activeTab, logsOffset, logsSubTab]);
 
   const loadData = async () => {
     try {
@@ -233,7 +236,11 @@ export default function AdminEmailsPage() {
 
   const loadLogs = async () => {
     try {
-      const res = await emailsApi.getLogs({ limit: 20, offset: logsOffset });
+      const res = await emailsApi.getLogs({
+        limit: 20,
+        offset: logsOffset,
+        ...(logsSubTab === 'failed' ? { status: 'failed' } : {}),
+      });
       setLogs(res.logs);
       setLogsTotal(res.pagination.total);
     } catch (error) {
@@ -241,6 +248,27 @@ export default function AdminEmailsPage() {
     }
   };
 
+  const handleResend = async (log: EmailLog) => {
+    setResendingLogId(log.id);
+    try {
+      const res = await emailsApi.resendLog(log.id);
+      if (res.success) {
+        toast.success('Email re-sent successfully');
+      } else {
+        toast.error(res.error || 'Failed to re-send email');
+      }
+      await loadLogs();
+      if (selectedLog?.id === log.id) {
+        const { log: updatedLog } = await emailsApi.getLog(log.id);
+        setSelectedLog(updatedLog);
+      }
+    } catch (error: any) {
+      toast.error(error.message || 'Failed to re-send email');
+    } finally {
+      setResendingLogId(null);
+    }
+  };
+
   const resetTemplateForm = () => {
     setTemplateForm({
       name: '',
@@ -699,6 +727,35 @@ export default function AdminEmailsPage() {
       {/* Logs Tab */}
       {activeTab === 'logs' && (
         <div>
+          {/* Sub-tabs: All | Failed */}
+          <div className="border-b border-secondary-light-gray mb-4">
+            <nav className="flex gap-4">
+              <button
+                onClick={() => { setLogsSubTab('all'); setLogsOffset(0); }}
+                className={clsx(
+                  'py-2 px-1 border-b-2 font-medium text-sm transition-colors',
+                  logsSubTab === 'all' ? 'border-primary-yellow text-primary-dark' : 'border-transparent text-gray-500 hover:text-gray-700'
+                )}
+              >
+                All
+              </button>
+              <button
+                onClick={() => { setLogsSubTab('failed'); setLogsOffset(0); }}
+                className={clsx(
+                  'py-2 px-1 border-b-2 font-medium text-sm transition-colors',
+                  logsSubTab === 'failed' ? 'border-primary-yellow text-primary-dark' : 'border-transparent text-gray-500 hover:text-gray-700'
+                )}
+              >
+                Failed
+                {stats && stats.failed > 0 && (
+                  <span className="ml-1.5 inline-flex items-center justify-center px-1.5 py-0.5 text-xs font-medium rounded-full bg-red-100 text-red-700">
+                    {stats.failed}
+                  </span>
+                )}
+              </button>
+            </nav>
+          </div>
+
           {/* Desktop: Table */}
           <Card className="overflow-hidden hidden md:block">
             <div className="overflow-x-auto">
@@ -714,12 +771,17 @@ export default function AdminEmailsPage() {
                 </thead>
                 <tbody className="divide-y divide-secondary-light-gray">
                   {logs.length === 0 ? (
-                    <tr><td colSpan={5} className="px-4 py-12 text-center text-gray-500 text-sm">No emails sent yet</td></tr>
+                    <tr><td colSpan={5} className="px-4 py-12 text-center text-gray-500 text-sm">{logsSubTab === 'failed' ? 'No failed emails' : 'No emails sent yet'}</td></tr>
                   ) : (
                     logs.map((log) => (
                       <tr key={log.id} className="hover:bg-gray-50">
                         <td className="px-4 py-3">
-                          <div className="flex items-center gap-2">{getStatusIcon(log.status)}<span className="capitalize text-sm">{log.status}</span></div>
+                          <div className="flex flex-col gap-1">
+                            <div className="flex items-center gap-2">{getStatusIcon(log.status)}<span className="capitalize text-sm">{log.status}</span></div>
+                            {(log.resendAttempts ?? 0) > 0 && (
+                              <span className="text-xs text-gray-500">Re-sent {log.resendAttempts} time{(log.resendAttempts ?? 0) !== 1 ? 's' : ''}</span>
+                            )}
+                          </div>
                         </td>
                         <td className="px-4 py-3">
                           <p className="font-medium text-sm">{log.recipientName || 'Unknown'}</p>
@@ -728,7 +790,15 @@ export default function AdminEmailsPage() {
                         <td className="px-4 py-3 max-w-xs"><p className="text-sm truncate">{log.subject}</p></td>
                         <td className="px-4 py-3 text-xs text-gray-500">{formatDate(log.sentAt || log.createdAt)}</td>
                         <td className="px-4 py-3">
-                          <div className="flex items-center justify-end">
+                          <div className="flex items-center justify-end gap-1">
+                            <button
+                              onClick={() => handleResend(log)}
+                              disabled={resendingLogId === log.id}
+                              className="p-2 hover:bg-gray-100 rounded-btn disabled:opacity-50"
+                              title="Re-send"
+                            >
+                              <ArrowPathIcon className={clsx('w-4 h-4', resendingLogId === log.id && 'animate-spin')} />
+                            </button>
                             <button onClick={() => setSelectedLog(log)} className="p-2 hover:bg-gray-100 rounded-btn" title="View">
                               <EyeIcon className="w-4 h-4" />
                             </button>
@@ -758,7 +828,7 @@ export default function AdminEmailsPage() {
           {/* Mobile: Card List */}
           <div className="md:hidden space-y-2">
             {logs.length === 0 ? (
-              <div className="text-center py-10 text-gray-500 text-sm">No emails sent yet</div>
+              <div className="text-center py-10 text-gray-500 text-sm">{logsSubTab === 'failed' ? 'No failed emails' : 'No emails sent yet'}</div>
             ) : (
               logs.map((log) => (
                 <Card key={log.id} className="p-3" onClick={() => setSelectedLog(log)}>
@@ -768,7 +838,18 @@ export default function AdminEmailsPage() {
                       <p className="font-medium text-sm truncate">{log.subject}</p>
                       <p className="text-xs text-gray-500 truncate">{log.recipientName || 'Unknown'} &lt;{log.recipientEmail}&gt;</p>
                       <p className="text-[10px] text-gray-400 mt-1">{formatDate(log.sentAt || log.createdAt)}</p>
+                      {(log.resendAttempts ?? 0) > 0 && (
+                        <p className="text-[10px] text-gray-500 mt-0.5">Re-sent {log.resendAttempts} time{(log.resendAttempts ?? 0) !== 1 ? 's' : ''}</p>
+                      )}
                     </div>
+                    <button
+                      onClick={(e) => { e.stopPropagation(); handleResend(log); }}
+                      disabled={resendingLogId === log.id}
+                      className="p-2 hover:bg-gray-100 rounded-btn flex-shrink-0 disabled:opacity-50"
+                      title="Re-send"
+                    >
+                      <ArrowPathIcon className={clsx('w-4 h-4', resendingLogId === log.id && 'animate-spin')} />
+                    </button>
                   </div>
                 </Card>
               ))
@@ -938,12 +1019,26 @@ export default function AdminEmailsPage() {
                   {selectedLog.errorMessage && (
                     <span className="text-xs text-red-500">- {selectedLog.errorMessage}</span>
                   )}
+                  {(selectedLog.resendAttempts ?? 0) > 0 && (
+                    <span className="text-xs text-gray-500">Re-sent {selectedLog.resendAttempts} time{(selectedLog.resendAttempts ?? 0) !== 1 ? 's' : ''}{selectedLog.lastResentAt ? ` (${formatDate(selectedLog.lastResentAt)})` : ''}</span>
+                  )}
                 </div>
               </div>
-              <button onClick={() => setSelectedLog(null)}
-                className="p-2 hover:bg-gray-100 rounded-btn min-h-[44px] min-w-[44px] flex items-center justify-center flex-shrink-0">
-                <XMarkIcon className="w-5 h-5" />
-              </button>
+              <div className="flex items-center gap-1 flex-shrink-0">
+                <button
+                  onClick={() => handleResend(selectedLog)}
+                  disabled={resendingLogId === selectedLog.id}
+                  className="p-2 hover:bg-gray-100 rounded-btn disabled:opacity-50 flex items-center gap-1.5 text-sm"
+                  title="Re-send"
+                >
+                  <ArrowPathIcon className={clsx('w-4 h-4', resendingLogId === selectedLog.id && 'animate-spin')} />
+                  Re-send
+                </button>
+                <button onClick={() => setSelectedLog(null)}
+                  className="p-2 hover:bg-gray-100 rounded-btn min-h-[44px] min-w-[44px] flex items-center justify-center">
+                  <XMarkIcon className="w-5 h-5" />
+                </button>
+              </div>
             </div>
             <div className="p-4 space-y-2 border-b border-secondary-light-gray bg-gray-50">
               <p><strong>To:</strong> {selectedLog.recipientName} &lt;{selectedLog.recipientEmail}&gt;</p>

frontend/src/lib/api.ts

@@ -492,7 +492,12 @@ export const emailsApi = {
   },
   
   getLog: (id: string) => fetchApi<{ log: EmailLog }>(`/api/emails/logs/${id}`),
-  
+
+  resendLog: (id: string) =>
+    fetchApi<{ success: boolean; error?: string }>(`/api/emails/logs/${id}/resend`, {
+      method: 'POST',
+    }),
+
   getStats: (eventId?: string) => {
     const query = eventId ? `?eventId=${eventId}` : '';
     return fetchApi<{ stats: EmailStats }>(`/api/emails/stats${query}`);
@@ -792,6 +797,8 @@ export interface EmailLog {
   sentAt?: string;
   sentBy?: string;
   createdAt: string;
+  resendAttempts?: number;
+  lastResentAt?: string;
 }
 
 export interface EmailStats {