diff --git a/app/(main)/[locale]/page.tsx b/app/(main)/[locale]/page.tsx
index d2da95da..1a2a2c17 100644
--- a/app/(main)/[locale]/page.tsx
+++ b/app/(main)/[locale]/page.tsx
@@ -1796,7 +1796,6 @@ export default function Home() {
 
   const handleSearch = async (query: string) => {
     if (!client) return;
-    if (isUnifiedView) return;
     setSearchQuery(query);
     if (!isFilterEmpty(searchFilters)) {
       await advancedSearch(client);
@@ -1808,14 +1807,25 @@ export default function Home() {
   const handleClearSearch = async () => {
     setSearchQuery("");
     clearSearchFilters();
-    if (client && selectedMailbox) {
+    if (!client) return;
+    // In unified view the active "mailbox" is a virtual role, so refresh via
+    // the unified fan-out instead of fetchEmails.
+    if (isUnifiedView) {
+      const role = useEmailStore.getState().unifiedRole;
+      if (role) {
+        const built = buildUnifiedAccounts();
+        const populated = await populateUnifiedAccountMailboxes(built);
+        await fetchUnifiedEmailsAction(populated, role);
+      }
+      return;
+    }
+    if (selectedMailbox) {
       await fetchEmails(client, selectedMailbox);
     }
   };
 
   const handleAdvancedSearch = async () => {
     if (!client) return;
-    if (isUnifiedView) return;
     await advancedSearch(client);
   };
 
@@ -1825,9 +1835,9 @@ export default function Home() {
       clearTimeout(advancedSearchDebounceRef.current);
     }
     advancedSearchDebounceRef.current = setTimeout(() => {
-      if (client && !isUnifiedView) advancedSearch(client);
+      if (client) advancedSearch(client);
     }, 300);
-  }, [client, advancedSearch, isUnifiedView]);
+  }, [client, advancedSearch]);
 
   useEffect(() => {
     return () => {
@@ -2326,8 +2336,6 @@ export default function Home() {
                       className={cn("pl-9 h-9", searchQuery && "pr-8")}
                       data-search-input
                       data-tour="search-input"
-                      disabled={isUnifiedView}
-                      title={isUnifiedView ? t("unified_mailbox.search_unavailable") : undefined}
                     />
                     {searchQuery && (
                       <button
@@ -2343,15 +2351,13 @@ export default function Home() {
                   <button
                     type="button"
                     onClick={toggleAdvancedSearch}
-                    disabled={isUnifiedView}
                     className={cn(
                       "relative flex-shrink-0 p-2 rounded-md transition-colors",
-                      isUnifiedView && "opacity-50 cursor-not-allowed",
                       isAdvancedSearchOpen || activeFilterCount(searchFilters) > 0
                         ? "bg-primary/10 text-primary"
                         : "text-muted-foreground hover:text-foreground hover:bg-muted"
                     )}
-                    title={isUnifiedView ? t("unified_mailbox.search_unavailable") : t("advanced_search.toggle_filters")}
+                    title={t("advanced_search.toggle_filters")}
                   >
                     <Filter className="w-4 h-4" />
                     {!isAdvancedSearchOpen && activeFilterCount(searchFilters) > 0 && (
diff --git a/lib/unified-mailbox.ts b/lib/unified-mailbox.ts
index 61e1732a..f1f38649 100644
--- a/lib/unified-mailbox.ts
+++ b/lib/unified-mailbox.ts
@@ -117,6 +117,99 @@ export async function fetchUnifiedEmails(
   };
 }
 
+/**
+ * Runs a text search across every account that has a mailbox for the given
+ * unified role, merging and sorting the results by receivedAt descending. The
+ * fan-out / error-collection shape mirrors `fetchUnifiedEmails` so the caller
+ * sees consistent behavior between browse and search.
+ */
+export async function searchUnifiedEmails(
+  accounts: UnifiedAccountClient[],
+  role: UnifiedMailboxRole,
+  query: string,
+  limit: number,
+  position: number,
+): Promise<UnifiedFetchResult> {
+  return fanOutUnifiedQuery(accounts, role, async (account, mailbox) => {
+    return account.client.searchEmails(query, mailbox.id, undefined, limit, position);
+  });
+}
+
+/**
+ * Like `searchUnifiedEmails`, but uses the JMAP advanced filter shape. The
+ * caller supplies a `filterFor(mailboxId)` factory because each account's role
+ * mailbox has a different id and the filter must include the right
+ * `inMailbox` clause per request.
+ */
+export async function advancedSearchUnifiedEmails(
+  accounts: UnifiedAccountClient[],
+  role: UnifiedMailboxRole,
+  filterFor: (mailboxId: string) => Record<string, unknown>,
+  limit: number,
+  position: number,
+): Promise<UnifiedFetchResult> {
+  return fanOutUnifiedQuery(accounts, role, async (account, mailbox) => {
+    return account.client.advancedSearchEmails(filterFor(mailbox.id), undefined, limit, position);
+  });
+}
+
+async function fanOutUnifiedQuery(
+  accounts: UnifiedAccountClient[],
+  role: UnifiedMailboxRole,
+  run: (
+    account: UnifiedAccountClient,
+    mailbox: Mailbox,
+  ) => Promise<{ emails: Email[]; total: number; hasMore: boolean }>,
+): Promise<UnifiedFetchResult> {
+  const errors = new Map<string, string>();
+
+  type AccountResult = {
+    account: UnifiedAccountClient;
+    result: { emails: Email[]; total: number; hasMore: boolean };
+  } | null;
+
+  const promises = accounts.map(async (account): Promise<AccountResult> => {
+    const mailbox = findMailboxByRole(account.mailboxes, role);
+    if (!mailbox) return null;
+    try {
+      const result = await run(account, mailbox);
+      return { account, result };
+    } catch (err) {
+      errors.set(
+        account.accountId,
+        err instanceof Error ? err.message : String(err),
+      );
+      return null;
+    }
+  });
+
+  const results = await Promise.allSettled(promises);
+
+  let mergedEmails: Email[] = [];
+  let totalSum = 0;
+  let anyHasMore = false;
+
+  for (const outcome of results) {
+    if (outcome.status !== 'fulfilled' || outcome.value === null) continue;
+    const { account, result } = outcome.value;
+    for (const email of result.emails) {
+      email.accountId = account.accountId;
+      email.accountLabel = account.accountLabel;
+    }
+    mergedEmails = mergedEmails.concat(result.emails);
+    totalSum += result.total;
+    if (result.hasMore) anyHasMore = true;
+  }
+
+  mergedEmails.sort((a, b) => {
+    const dateA = new Date(a.receivedAt).getTime();
+    const dateB = new Date(b.receivedAt).getTime();
+    return dateB - dateA;
+  });
+
+  return { emails: mergedEmails, total: totalSum, hasMore: anyHasMore, errors };
+}
+
 /**
  * Aggregates unread and total email counts across all accounts for each
  * unified mailbox role. Only includes roles that exist in at least one account.
diff --git a/stores/email-store.ts b/stores/email-store.ts
index a3db2d3b..ea372370 100644
--- a/stores/email-store.ts
+++ b/stores/email-store.ts
@@ -7,7 +7,7 @@ import { useCalendarStore } from "@/stores/calendar-store";
 import { SearchFilters, DEFAULT_SEARCH_FILTERS, buildJMAPFilter, isFilterEmpty } from "@/lib/jmap/search-utils";
 import { emailHooks } from "@/lib/plugin-hooks";
 import type { ExternalSearchResult } from "@/lib/plugin-types";
-import { fetchUnifiedEmails, fetchUnifiedMailboxCounts, type UnifiedAccountClient, type UnifiedMailboxCounts } from "@/lib/unified-mailbox";
+import { fetchUnifiedEmails, fetchUnifiedMailboxCounts, searchUnifiedEmails, advancedSearchUnifiedEmails, type UnifiedAccountClient, type UnifiedMailboxCounts } from "@/lib/unified-mailbox";
 import { useAuthStore } from "@/stores/auth-store";
 import { useAccountStore } from "@/stores/account-store";
 
@@ -231,6 +231,30 @@ function resolveActionMailboxes(): Mailbox[] {
  * standard `mailboxes` slot for the active account, or the per-account
  * cache for non-active accounts so the Pro sidebar stays in sync.
  */
+/**
+ * Builds the `UnifiedAccountClient[]` list used by every unified fan-out
+ * action (browse, load-more, search). Each entry has a JMAP client plus a
+ * fresh mailbox list so the helpers can resolve the role mailbox per account.
+ * Accounts whose mailbox fetch fails are skipped — the unified result will
+ * surface that in its per-account error map.
+ */
+async function buildUnifiedAccountClients(): Promise<UnifiedAccountClient[]> {
+  const authAccounts = useAccountStore.getState().accounts.filter((a) => a.isConnected);
+  const allClients = useAuthStore.getState().getAllConnectedClients();
+  const built: UnifiedAccountClient[] = [];
+  for (const a of authAccounts) {
+    const c = allClients.get(a.id);
+    if (!c) continue;
+    try {
+      const mailboxes = await c.getMailboxes();
+      built.push({ accountId: a.id, accountLabel: a.label || a.email, client: c, mailboxes });
+    } catch {
+      /* skip account on mailbox fetch failure */
+    }
+  }
+  return built;
+}
+
 async function refreshMailboxesForViewingAccount(fallbackClient: IJMAPClient): Promise<void> {
   const viewingId = useEmailStore.getState().viewingAccountId;
   const client = resolveActionClient(fallbackClient);
@@ -538,27 +562,28 @@ export const useEmailStore = create<EmailStore>((set, get) => ({
     // Don't load if already loading or no more emails
     if (isLoadingMore || !hasMoreEmails) return;
 
-    // Unified view uses a different fan-out loader. Rebuild the per-account
-    // client list from auth/account stores and delegate.
+    // Unified view uses a different fan-out loader. When a search query or
+    // advanced filter is active we paginate the unified search instead of the
+    // unified browse, so "load more" matches what's on screen.
     if (isUnifiedView && unifiedRole) {
       set({ isLoadingMore: true, error: null });
       try {
         const emailsPerPage = useSettingsStore.getState().emailsPerPage;
         const position = emails.length;
-        const authAccounts = useAccountStore.getState().accounts.filter(a => a.isConnected);
-        const allClients = useAuthStore.getState().getAllConnectedClients();
-        const built: UnifiedAccountClient[] = [];
-        for (const a of authAccounts) {
-          const c = allClients.get(a.id);
-          if (!c) continue;
-          try {
-            const mailboxes = await c.getMailboxes();
-            built.push({ accountId: a.id, accountLabel: a.label || a.email, client: c, mailboxes });
-          } catch {
-            /* skip account on mailbox fetch failure */
-          }
-        }
-        const result = await fetchUnifiedEmails(built, unifiedRole, emailsPerPage, position);
+        const built = await buildUnifiedAccountClients();
+        const { searchFilters } = get();
+        const hasFilters = !isFilterEmpty(searchFilters);
+        const result = hasFilters
+          ? await advancedSearchUnifiedEmails(
+              built,
+              unifiedRole,
+              (mailboxId) => buildJMAPFilter(searchQuery, searchFilters, mailboxId),
+              emailsPerPage,
+              position,
+            )
+          : searchQuery
+            ? await searchUnifiedEmails(built, unifiedRole, searchQuery, emailsPerPage, position)
+            : await fetchUnifiedEmails(built, unifiedRole, emailsPerPage, position);
         const currentEmails = get().emails;
         const existingIds = new Set(currentEmails.map(e => e.id));
         const newEmails = result.emails.filter(e => !existingIds.has(e.id));
@@ -1110,6 +1135,24 @@ export const useEmailStore = create<EmailStore>((set, get) => ({
   searchEmails: async (client, query) => {
     set({ isLoading: true, error: null, searchQuery: query, emails: [], hasMoreEmails: false, totalEmails: 0 }); // Clear emails for loading state
     try {
+      const { isUnifiedView, unifiedRole } = get();
+      const emailsPerPage = useSettingsStore.getState().emailsPerPage;
+
+      if (isUnifiedView && unifiedRole) {
+        const built = await buildUnifiedAccountClients();
+        const result = await searchUnifiedEmails(built, unifiedRole, query, emailsPerPage, 0);
+        const externals = await emailHooks.onProvideSearchResults.transform([] as ExternalSearchResult[], { query, filters: get().searchFilters });
+        set({
+          emails: result.emails,
+          externalSearchResults: externals,
+          hasMoreEmails: result.hasMore,
+          totalEmails: result.total,
+          isLoading: false,
+          unifiedErrors: result.errors,
+        });
+        return;
+      }
+
       // Get the current mailbox to scope the search
       const selectedMailbox = get().selectedMailbox;
       const mailboxes = resolveActionMailboxes();
@@ -1119,8 +1162,6 @@ export const useEmailStore = create<EmailStore>((set, get) => ({
       // Only pass accountId for shared mailboxes, not for primary account
       const accountId = mailbox?.isShared ? mailbox.accountId : undefined;
 
-      // Get emails per page from settings
-      const emailsPerPage = useSettingsStore.getState().emailsPerPage;
       const result = await resolveActionClient(client).searchEmails(query, jmapMailboxId, accountId, emailsPerPage, 0);
       const externals = await emailHooks.onProvideSearchResults.transform([] as ExternalSearchResult[], { query, filters: get().searchFilters });
       set({
@@ -1143,7 +1184,7 @@ export const useEmailStore = create<EmailStore>((set, get) => ({
   },
 
   advancedSearch: async (client) => {
-    const { searchQuery, searchFilters, selectedMailbox, searchAbortController } = get();
+    const { searchQuery, searchFilters, selectedMailbox, searchAbortController, isUnifiedView, unifiedRole } = get();
     const mailboxes = resolveActionMailboxes();
 
     if (searchAbortController) {
@@ -1161,12 +1202,36 @@ export const useEmailStore = create<EmailStore>((set, get) => ({
     });
 
     try {
+      const emailsPerPage = useSettingsStore.getState().emailsPerPage;
+
+      if (isUnifiedView && unifiedRole) {
+        const built = await buildUnifiedAccountClients();
+        const result = await advancedSearchUnifiedEmails(
+          built,
+          unifiedRole,
+          (mailboxId) => buildJMAPFilter(searchQuery, searchFilters, mailboxId),
+          emailsPerPage,
+          0,
+        );
+        if (controller.signal.aborted) return;
+        const externals = await emailHooks.onProvideSearchResults.transform([] as ExternalSearchResult[], { query: searchQuery, filters: searchFilters });
+        set({
+          emails: result.emails,
+          externalSearchResults: externals,
+          hasMoreEmails: result.hasMore,
+          totalEmails: result.total,
+          isLoading: false,
+          searchAbortController: null,
+          unifiedErrors: result.errors,
+        });
+        return;
+      }
+
       const mailbox = mailboxes.find(mb => mb.id === selectedMailbox);
       const jmapMailboxId = mailbox?.originalId || selectedMailbox;
       const accountId = mailbox?.isShared ? mailbox.accountId : undefined;
 
       const filter = buildJMAPFilter(searchQuery, searchFilters, jmapMailboxId);
-      const emailsPerPage = useSettingsStore.getState().emailsPerPage;
       const result = await resolveActionClient(client).advancedSearchEmails(filter, accountId, emailsPerPage, 0);
 
       if (controller.signal.aborted) return;