diff --git a/backend/db/migrations/0067_email_account_enabled.sql b/backend/db/migrations/0067_email_account_enabled.sql
new file mode 100644
index 0000000..94eae29
--- /dev/null
+++ b/backend/db/migrations/0067_email_account_enabled.sql
@@ -0,0 +1,2 @@
+ALTER TABLE "user_credentials"
+    ADD COLUMN IF NOT EXISTS "email_enabled" boolean DEFAULT true NOT NULL;
diff --git a/backend/db/migrations/meta/_journal.json b/backend/db/migrations/meta/_journal.json
index c8904de..16d9fde 100644
--- a/backend/db/migrations/meta/_journal.json
+++ b/backend/db/migrations/meta/_journal.json
@@ -449,6 +449,13 @@
       "when": 1788799700000,
       "tag": "0066_email_entity_links",
       "breakpoints": true
+    },
+    {
+      "idx": 64,
+      "version": "7",
+      "when": 1788801000000,
+      "tag": "0067_email_account_enabled",
+      "breakpoints": true
     }
   ]
 }
diff --git a/backend/db/schema/user_credentials.ts b/backend/db/schema/user_credentials.ts
index f1ae045..b7ad995 100644
--- a/backend/db/schema/user_credentials.ts
+++ b/backend/db/schema/user_credentials.ts
@@ -35,6 +35,7 @@ export const userCredentials = pgTable("user_credentials", {
     smtpSsl: boolean("smtp_ssl"),
 
     type: credentialTypesEnum("type").notNull(),
+    emailEnabled: boolean("email_enabled").notNull().default(true),
 
     imapPort: numeric("imap_port"),
     imapSsl: boolean("imap_ssl"),
diff --git a/backend/src/routes/emailAsUser.ts b/backend/src/routes/emailAsUser.ts
index 017c193..315c2ad 100644
--- a/backend/src/routes/emailAsUser.ts
+++ b/backend/src/routes/emailAsUser.ts
@@ -1,12 +1,13 @@
 import nodemailer from "nodemailer"
 import { FastifyInstance } from "fastify"
-import { and, desc, eq } from "drizzle-orm"
+import { and, desc, eq, isNotNull } from "drizzle-orm"
 
 import { encrypt, decrypt } from "../utils/crypt"
 import {
     customers,
     emailEntityLinks,
     emailMessages,
+    emailSyncState,
     plants,
     projects,
     userCredentials,
@@ -54,6 +55,7 @@ export default async function emailAsUserRoutes(server: FastifyInstance) {
             userId: row.userId,
             tenantId: row.tenantId,
             type: row.type,
+            emailEnabled: row.emailEnabled !== false,
             email,
             displayName: email || `Mailkonto ${String(row.id).slice(0, 8)} muss repariert werden`,
             smtpHost,
@@ -68,6 +70,24 @@ export default async function emailAsUserRoutes(server: FastifyInstance) {
         }
     }
 
+    const accountResponseWithStatus = async (row: any) => {
+        const syncRows = await server.db
+            .select({ lastSyncedAt: emailSyncState.lastSyncedAt })
+            .from(emailSyncState)
+            .where(and(
+                eq(emailSyncState.accountId, row.id),
+                eq(emailSyncState.tenantId, row.tenantId),
+                isNotNull(emailSyncState.lastSyncedAt),
+            ))
+            .orderBy(desc(emailSyncState.lastSyncedAt))
+            .limit(1)
+
+        return {
+            ...accountResponse(row),
+            lastSyncedAt: syncRows[0]?.lastSyncedAt || null,
+        }
+    }
+
     const accountCredentials = (row: any) => {
         const account = accountResponse(row)
         if (!account.credentialsReadable) {
@@ -148,13 +168,14 @@ export default async function emailAsUserRoutes(server: FastifyInstance) {
         reply.header("Access-Control-Expose-Headers", "Authorization, Content-Disposition, Content-Type, Content-Length")
     }
 
-    const accountWhere = (tenantId: number, userId: string, id?: string) => {
+    const accountWhere = (tenantId: number, userId: string, id?: string, enabledOnly = false) => {
         const conditions = [
             eq(userCredentials.tenantId, tenantId),
             eq(userCredentials.userId, userId),
             eq(userCredentials.type, "mail"),
         ]
         if (id) conditions.push(eq(userCredentials.id, id))
+        if (enabledOnly) conditions.push(eq(userCredentials.emailEnabled, true))
         return and(...conditions)
     }
 
@@ -185,6 +206,7 @@ export default async function emailAsUserRoutes(server: FastifyInstance) {
                 imap_host?: string
                 imap_port?: number
                 imap_ssl?: boolean
+                emailEnabled?: boolean
             }
 
             // -----------------------------
@@ -208,6 +230,7 @@ export default async function emailAsUserRoutes(server: FastifyInstance) {
                     imapHostEncrypted: bodyValue(body, "imapHost", "imap_host") ? encrypt(bodyValue(body, "imapHost", "imap_host")) : undefined,
                     imapPort: bodyValue(body, "imapPort", "imap_port"),
                     imapSsl: bodyValue(body, "imapSsl", "imap_ssl"),
+                    emailEnabled: typeof body.emailEnabled === "boolean" ? body.emailEnabled : undefined,
                     updatedAt: new Date(),
                 }
 
@@ -227,6 +250,7 @@ export default async function emailAsUserRoutes(server: FastifyInstance) {
                 userId: req.user.user_id,
                 tenantId: req.user.tenant_id,
                 type: "mail",
+                emailEnabled: body.emailEnabled !== false,
 
                 emailEncrypted: encrypt(body.email),
                 passwordEncrypted: encrypt(body.password),
@@ -262,6 +286,7 @@ export default async function emailAsUserRoutes(server: FastifyInstance) {
             }
 
             const { id } = req.params as { id?: string }
+            const query = (req.query || {}) as { includeDisabled?: string | boolean }
 
             // ============================================================
             // LOAD SINGLE ACCOUNT
@@ -276,7 +301,7 @@ export default async function emailAsUserRoutes(server: FastifyInstance) {
                 const row = rows[0]
                 if (!row) return reply.code(404).send({ error: "Not found" })
 
-                return reply.send(accountResponse(row))
+                return reply.send(await accountResponseWithStatus(row))
             }
 
             // ============================================================
@@ -285,9 +310,14 @@ export default async function emailAsUserRoutes(server: FastifyInstance) {
             const rows = await server.db
                 .select()
                 .from(userCredentials)
-                .where(accountWhere(req.user.tenant_id, req.user.user_id))
+                .where(accountWhere(
+                    req.user.tenant_id,
+                    req.user.user_id,
+                    undefined,
+                    query.includeDisabled !== "true" && query.includeDisabled !== true,
+                ))
 
-            return reply.send(rows.map(accountResponse))
+            return reply.send(await Promise.all(rows.map(accountResponseWithStatus)))
 
         } catch (err) {
             console.error("GET /email/accounts error:", err)
@@ -319,7 +349,7 @@ export default async function emailAsUserRoutes(server: FastifyInstance) {
             const rows = await server.db
                 .select()
                 .from(userCredentials)
-                .where(accountWhere(req.user.tenant_id, req.user.user_id, body.account))
+                .where(accountWhere(req.user.tenant_id, req.user.user_id, body.account, true))
                 .limit(1)
 
             const row = rows[0]
@@ -444,6 +474,17 @@ export default async function emailAsUserRoutes(server: FastifyInstance) {
             const { id } = req.params as { id: string }
             const body = (req.body || {}) as { mailbox?: string; limit?: number }
 
+            const accountRows = await server.db
+                .select({ emailEnabled: userCredentials.emailEnabled })
+                .from(userCredentials)
+                .where(accountWhere(req.user.tenant_id, req.user.user_id, id))
+                .limit(1)
+
+            if (!accountRows[0]) return reply.code(404).send({ error: "E-Mail-Konto nicht gefunden" })
+            if (!accountRows[0].emailEnabled) {
+                return reply.code(409).send({ error: "Das E-Mail-Konto ist deaktiviert" })
+            }
+
             const result = await emailSync.syncAccount(
                 req.user.tenant_id,
                 req.user.user_id,
diff --git a/frontend/pages/settings/emailaccounts/index.vue b/frontend/pages/settings/emailaccounts/index.vue
index 6f824b7..6e6b9b0 100644
--- a/frontend/pages/settings/emailaccounts/index.vue
+++ b/frontend/pages/settings/emailaccounts/index.vue
@@ -3,16 +3,58 @@ const toast = useToast()
 const items = ref([])
 const loading = ref(true)
 const syncingAccount = ref<string | null>(null)
+const updatingAccount = ref<string | null>(null)
+
+const formatLastUpdated = (value?: string | null) => {
+  if (!value) return "Noch nicht synchronisiert"
+  const date = new Date(value)
+  if (Number.isNaN(date.getTime())) return "Unbekannt"
+
+  return new Intl.DateTimeFormat("de-DE", {
+    dateStyle: "medium",
+    timeStyle: "short",
+  }).format(date)
+}
 
 const setupPage = async () => {
   loading.value = true
   try {
-    items.value = await useNuxtApp().$api("/api/email/accounts")
+    items.value = await useNuxtApp().$api("/api/email/accounts", {
+      query: { includeDisabled: true },
+    })
   } finally {
     loading.value = false
   }
 }
 
+const toggleAccount = async (account: any) => {
+  updatingAccount.value = account.id
+  const nextEnabled = account.emailEnabled === false
+
+  try {
+    await useNuxtApp().$api(`/api/email/accounts/${account.id}`, {
+      method: "POST",
+      body: { emailEnabled: nextEnabled },
+    })
+    toast.add({
+      title: nextEnabled ? "E-Mail-Konto aktiviert" : "E-Mail-Konto deaktiviert",
+      description: nextEnabled
+        ? "Das Konto erscheint wieder in der Mailoberfläche."
+        : "Das Konto wird in der Mailoberfläche nicht mehr angezeigt.",
+      color: "success",
+    })
+    await setupPage()
+  } catch (err: any) {
+    toast.add({
+      title: "Status konnte nicht geändert werden",
+      description: err?.data?.error || err?.message,
+      color: "error",
+    })
+  } finally {
+    updatingAccount.value = null
+  }
+}
+
 const syncAccount = async (account: any) => {
   syncingAccount.value = account.id
   try {
@@ -82,11 +124,19 @@ setupPage()
           >
             IMAP/SMTP
           </UBadge>
+          <UBadge
+              size="xs"
+              :color="account.emailEnabled === false ? 'neutral' : 'success'"
+              variant="soft"
+          >
+            {{ account.emailEnabled === false ? "Deaktiviert" : "Aktiv" }}
+          </UBadge>
         </div>
         <div class="mt-1 flex flex-wrap gap-x-4 gap-y-1 text-sm text-dimmed">
           <span>IMAP: {{ account.imapHost || "nicht gesetzt" }}:{{ account.imapPort || "-" }}</span>
           <span>SMTP: {{ account.smtpHost || "nicht gesetzt" }}:{{ account.smtpPort || "-" }}</span>
           <span>{{ account.hasPassword ? "Passwort hinterlegt" : "Passwort fehlt" }}</span>
+          <span>Zuletzt aktualisiert: {{ formatLastUpdated(account.lastSyncedAt) }}</span>
         </div>
         <p v-if="account.credentialsReadable === false" class="mt-2 text-sm text-error">
           Die verschlüsselten Zugangsdaten sind nicht lesbar. Öffne das Konto und trage alle Zugangsdaten neu ein.
@@ -99,11 +149,20 @@ setupPage()
             color="neutral"
             variant="soft"
             :loading="syncingAccount === account.id"
-            :disabled="account.credentialsReadable === false"
+            :disabled="account.credentialsReadable === false || account.emailEnabled === false"
             @click.stop="syncAccount(account)"
         >
           Synchronisieren
         </UButton>
+        <UButton
+            :icon="account.emailEnabled === false ? 'i-heroicons-play' : 'i-heroicons-pause'"
+            :color="account.emailEnabled === false ? 'primary' : 'neutral'"
+            variant="soft"
+            :loading="updatingAccount === account.id"
+            @click.stop="toggleAccount(account)"
+        >
+          {{ account.emailEnabled === false ? "Aktivieren" : "Deaktivieren" }}
+        </UButton>
         <UButton
             icon="i-heroicons-pencil-square"
             color="neutral"