diff --git a/background.js b/background.js
index 11fd5ec..bf3d2b7 100644
--- a/background.js
+++ b/background.js
@@ -43,6 +43,9 @@ const AUTO_STEP_DELAY_MIN_ALLOWED_SECONDS = 0;
 const AUTO_STEP_DELAY_MAX_ALLOWED_SECONDS = 600;
 const LEGACY_AUTO_STEP_DELAY_KEYS = ['autoStepRandomDelayMinSeconds', 'autoStepRandomDelayMaxSeconds'];
 const DEFAULT_LOCAL_CPA_STEP9_MODE = 'submit';
+const MAIL_2925_MODE_PROVIDE = 'provide';
+const MAIL_2925_MODE_RECEIVE = 'receive';
+const DEFAULT_MAIL_2925_MODE = MAIL_2925_MODE_PROVIDE;
 const HOTMAIL_SERVICE_MODE_REMOTE = 'remote';
 const HOTMAIL_SERVICE_MODE_LOCAL = 'local';
 const DEFAULT_HOTMAIL_REMOTE_BASE_URL = '';
@@ -72,6 +75,7 @@ const PERSISTED_SETTING_DEFAULTS = {
   autoRunDelayMinutes: 30,
   autoStepDelaySeconds: null,
   mailProvider: '163',
+  mail2925Mode: DEFAULT_MAIL_2925_MODE,
   emailGenerator: 'duck',
   emailPrefix: '',
   inbucketHost: '',
@@ -244,6 +248,12 @@ function normalizeMailProvider(value = '') {
   }
 }
 
+function normalizeMail2925Mode(value = '') {
+  return String(value || '').trim().toLowerCase() === MAIL_2925_MODE_RECEIVE
+    ? MAIL_2925_MODE_RECEIVE
+    : DEFAULT_MAIL_2925_MODE;
+}
+
 function normalizeLocalCpaStep9Mode(value = '') {
   return String(value || '').trim().toLowerCase() === 'bypass'
     ? 'bypass'
@@ -361,6 +371,8 @@ function normalizePersistentSettingValue(key, value) {
       return normalizeAutoStepDelaySeconds(value, PERSISTED_SETTING_DEFAULTS.autoStepDelaySeconds);
     case 'mailProvider':
       return normalizeMailProvider(value);
+    case 'mail2925Mode':
+      return normalizeMail2925Mode(value);
     case 'emailGenerator':
       return normalizeEmailGenerator(value);
     case 'emailPrefix':
@@ -653,6 +665,13 @@ function isCustomMailProvider(stateOrProvider) {
   return provider === 'custom';
 }
 
+function getMail2925Mode(stateOrMode) {
+  if (typeof stateOrMode === 'string') {
+    return normalizeMail2925Mode(stateOrMode);
+  }
+  return normalizeMail2925Mode(stateOrMode?.mail2925Mode);
+}
+
 async function syncHotmailAccounts(accounts) {
   const normalized = normalizeHotmailAccounts(accounts);
   await setPersistentSettings({ hotmailAccounts: normalized });
@@ -1276,14 +1295,20 @@ function generateRandomSuffix(length = 6) {
   return suffix;
 }
 
-function isGeneratedAliasProvider(provider) {
-  return provider === '2925';
+function isGeneratedAliasProvider(stateOrProvider, mail2925Mode = undefined) {
+  const provider = typeof stateOrProvider === 'string'
+    ? stateOrProvider
+    : stateOrProvider?.mailProvider;
+  const resolvedMail2925Mode = mail2925Mode !== undefined
+    ? normalizeMail2925Mode(mail2925Mode)
+    : getMail2925Mode(stateOrProvider);
+  return provider === '2925' && resolvedMail2925Mode === MAIL_2925_MODE_PROVIDE;
 }
 
 function shouldUseCustomRegistrationEmail(state = {}) {
   return isCustomMailProvider(state)
     || (!isHotmailProvider(state)
-      && !isGeneratedAliasProvider(state.mailProvider)
+      && !isGeneratedAliasProvider(state)
       && normalizeEmailGenerator(state.emailGenerator) === 'custom');
 }
 
@@ -1295,7 +1320,7 @@ function buildGeneratedAliasEmail(state) {
     throw new Error('2925 邮箱前缀未设置，请先在侧边栏填写。');
   }
 
-  if (provider === '2925') {
+  if (provider === '2925' && isGeneratedAliasProvider(state)) {
     return `${emailPrefix}${generateRandomSuffix(6)}@2925.com`;
   }
 
@@ -3564,7 +3589,7 @@ async function ensureAutoEmailReady(targetRun, totalRuns, attemptRuns) {
     return account.email;
   }
 
-  if (isGeneratedAliasProvider(currentState.mailProvider)) {
+  if (isGeneratedAliasProvider(currentState)) {
     if (!currentState.emailPrefix) {
       throw new Error('2925 邮箱前缀未设置，请先在侧边栏填写。');
     }
@@ -4690,7 +4715,7 @@ async function executeStep3(state) {
       preferredAccountId: state.currentHotmailAccountId || null,
     });
     resolvedEmail = account.email;
-  } else if (isGeneratedAliasProvider(state.mailProvider)) {
+  } else if (isGeneratedAliasProvider(state)) {
     resolvedEmail = buildGeneratedAliasEmail(state);
   }
 
diff --git a/sidepanel/sidepanel.html b/sidepanel/sidepanel.html
index 944b7e7..5077df6 100644
--- a/sidepanel/sidepanel.html
+++ b/sidepanel/sidepanel.html
@@ -163,6 +163,13 @@
           <button id="btn-mail-login" class="btn btn-outline btn-sm data-inline-btn" type="button" disabled>登录</button>
         </div>
       </div>
+      <div class="data-row" id="row-mail-2925-mode" style="display:none;">
+        <span class="data-label">2925 模式</span>
+        <div id="mail-2925-mode-group" class="choice-group" role="group" aria-label="2925 邮箱模式">
+          <button type="button" class="choice-btn" data-mail-2925-mode="provide">提供邮箱</button>
+          <button type="button" class="choice-btn" data-mail-2925-mode="receive">接收邮箱</button>
+        </div>
+      </div>
       <div class="data-row" id="row-email-generator">
         <span class="data-label">邮箱生成</span>
         <select id="select-email-generator" class="data-select">
diff --git a/sidepanel/sidepanel.js b/sidepanel/sidepanel.js
index 623f020..370ecf7 100644
--- a/sidepanel/sidepanel.js
+++ b/sidepanel/sidepanel.js
@@ -66,6 +66,8 @@ const rowSub2ApiGroup = document.getElementById('row-sub2api-group');
 const inputSub2ApiGroup = document.getElementById('input-sub2api-group');
 const selectMailProvider = document.getElementById('select-mail-provider');
 const btnMailLogin = document.getElementById('btn-mail-login');
+const rowMail2925Mode = document.getElementById('row-mail-2925-mode');
+const mail2925ModeButtons = Array.from(document.querySelectorAll('[data-mail-2925-mode]'));
 const rowEmailGenerator = document.getElementById('row-email-generator');
 const selectEmailGenerator = document.getElementById('select-email-generator');
 const hotmailSection = document.getElementById('hotmail-section');
@@ -139,6 +141,9 @@ const AUTO_RUN_MAX_RETRIES_PER_ROUND = 3;
 const AUTO_STEP_DELAY_MIN_SECONDS = 0;
 const AUTO_STEP_DELAY_MAX_SECONDS = 600;
 const DEFAULT_LOCAL_CPA_STEP9_MODE = 'submit';
+const MAIL_2925_MODE_PROVIDE = 'provide';
+const MAIL_2925_MODE_RECEIVE = 'receive';
+const DEFAULT_MAIL_2925_MODE = MAIL_2925_MODE_PROVIDE;
 const AUTO_SKIP_FAILURES_PROMPT_DISMISSED_STORAGE_KEY = 'multipage-auto-skip-failures-prompt-dismissed';
 const AUTO_RUN_FALLBACK_RISK_PROMPT_DISMISSED_STORAGE_KEY = 'multipage-auto-run-fallback-risk-prompt-dismissed';
 const AUTO_RUN_FALLBACK_RISK_WARNING_MIN_RUNS = 15;
@@ -226,7 +231,8 @@ const LOG_LEVEL_LABELS = {
 };
 
 function usesGeneratedAliasMailProvider(provider) {
-  return provider === '2925';
+  return String(provider || '').trim() === '2925'
+    && getSelectedMail2925Mode() === MAIL_2925_MODE_PROVIDE;
 }
 
 function showToast(message, type = 'error', duration = 4000) {
@@ -926,6 +932,7 @@ function collectSettingsPayload() {
     sub2apiGroupName: inputSub2ApiGroup.value.trim(),
     customPassword: inputPassword.value,
     mailProvider: selectMailProvider.value,
+    mail2925Mode: getSelectedMail2925Mode(),
     emailGenerator: selectEmailGenerator.value,
     emailPrefix: inputEmailPrefix.value.trim(),
     inbucketHost: inputInbucketHost.value.trim(),
@@ -949,6 +956,12 @@ function normalizeLocalCpaStep9Mode(value = '') {
     : DEFAULT_LOCAL_CPA_STEP9_MODE;
 }
 
+function normalizeMail2925Mode(value = '') {
+  return String(value || '').trim().toLowerCase() === MAIL_2925_MODE_RECEIVE
+    ? MAIL_2925_MODE_RECEIVE
+    : DEFAULT_MAIL_2925_MODE;
+}
+
 function normalizeHotmailServiceMode(value = '') {
   return HOTMAIL_SERVICE_MODE_LOCAL;
 }
@@ -967,6 +980,20 @@ function setLocalCpaStep9Mode(mode) {
   });
 }
 
+function getSelectedMail2925Mode() {
+  const activeButton = mail2925ModeButtons.find((button) => button.classList.contains('is-active'));
+  return normalizeMail2925Mode(activeButton?.dataset.mail2925Mode);
+}
+
+function setMail2925Mode(mode) {
+  const resolvedMode = normalizeMail2925Mode(mode);
+  mail2925ModeButtons.forEach((button) => {
+    const active = button.dataset.mail2925Mode === resolvedMode;
+    button.classList.toggle('is-active', active);
+    button.setAttribute('aria-pressed', String(active));
+  });
+}
+
 function getSelectedHotmailServiceMode() {
   const activeButton = hotmailServiceModeButtons.find((button) => button.classList.contains('is-active'));
   return normalizeHotmailServiceMode(activeButton?.dataset.hotmailServiceMode);
@@ -1213,6 +1240,7 @@ function applySettingsState(state) {
       ? 'custom'
       : '163');
   selectMailProvider.value = restoredMailProvider;
+  setMail2925Mode(state?.mail2925Mode);
   selectEmailGenerator.value = String(state?.emailGenerator || '').trim().toLowerCase() === 'cloudflare' ? 'cloudflare' : 'duck';
   inputEmailPrefix.value = state?.emailPrefix || '';
   inputInbucketHost.value = state?.inbucketHost || '';
@@ -1567,9 +1595,13 @@ function isCurrentEmailManagedByHotmail(state = latestState) {
   return inputEmailValue === hotmailEmail || stateEmailValue === hotmailEmail;
 }
 
-function isCurrentEmailManagedByGeneratedAlias(provider = latestState?.mailProvider, state = latestState) {
+function isCurrentEmailManagedByGeneratedAlias(
+  provider = latestState?.mailProvider,
+  state = latestState,
+  mail2925Mode = latestState?.mail2925Mode
+) {
   const normalizedProvider = String(provider || '').trim();
-  if (!usesGeneratedAliasMailProvider(normalizedProvider)) {
+  if (!(normalizedProvider === '2925' && normalizeMail2925Mode(mail2925Mode) === MAIL_2925_MODE_PROVIDE)) {
     return false;
   }
 
@@ -1803,12 +1835,16 @@ function renderHotmailAccounts() {
 
 function updateMailProviderUI() {
   const use2925 = selectMailProvider.value === '2925';
-  const useGeneratedAlias = usesGeneratedAliasMailProvider(selectMailProvider.value);
+  const mail2925Mode = getSelectedMail2925Mode();
+  const useGeneratedAlias = use2925 && mail2925Mode === MAIL_2925_MODE_PROVIDE;
   const useInbucket = selectMailProvider.value === 'inbucket';
   const useHotmail = selectMailProvider.value === 'hotmail-api';
   const useCustomEmail = isCustomMailProvider();
   const useEmailGenerator = !useHotmail && !useGeneratedAlias && !useCustomEmail;
   updateMailLoginButtonState();
+  if (rowMail2925Mode) {
+    rowMail2925Mode.style.display = use2925 ? '' : 'none';
+  }
   rowEmailPrefix.style.display = useGeneratedAlias ? '' : 'none';
   const hotmailServiceMode = getSelectedHotmailServiceMode();
   rowInbucketHost.style.display = useInbucket ? '' : 'none';
@@ -1846,7 +1882,7 @@ function updateMailProviderUI() {
   const uiCopy = useCustomEmail ? getCustomMailProviderUiCopy() : getEmailGeneratorUiCopy();
   inputEmail.placeholder = useHotmail
     ? '由 Hotmail 账号池自动分配'
-    : (use2925 ? '步骤 3 自动生成 2925 邮箱并回填' : uiCopy.placeholder);
+    : (useGeneratedAlias ? '步骤 3 自动生成 2925 邮箱并回填' : uiCopy.placeholder);
   btnFetchEmail.disabled = useGeneratedAlias || useCustomEmail || isAutoRunLockedPhase();
   if (!btnFetchEmail.disabled) {
     btnFetchEmail.textContent = uiCopy.buttonLabel;
@@ -3002,14 +3038,18 @@ inputPassword.addEventListener('blur', () => {
 
 selectMailProvider.addEventListener('change', async () => {
   const previousProvider = latestState?.mailProvider || '';
+  const previousMail2925Mode = latestState?.mail2925Mode;
   const nextProvider = selectMailProvider.value;
   updateMailProviderUI();
   const leavingHotmail = previousProvider === 'hotmail-api'
     && nextProvider !== 'hotmail-api'
     && isCurrentEmailManagedByHotmail();
-  const leavingGeneratedAlias = previousProvider !== nextProvider
-    && usesGeneratedAliasMailProvider(previousProvider)
-    && isCurrentEmailManagedByGeneratedAlias(previousProvider);
+  const leavingGeneratedAlias = (
+    previousProvider !== nextProvider
+    || (previousProvider === '2925' && normalizeMail2925Mode(previousMail2925Mode) !== getSelectedMail2925Mode())
+  ) && previousProvider === '2925'
+    && normalizeMail2925Mode(previousMail2925Mode) === MAIL_2925_MODE_PROVIDE
+    && isCurrentEmailManagedByGeneratedAlias(previousProvider, latestState, previousMail2925Mode);
   if (leavingHotmail || leavingGeneratedAlias) {
     await clearRegistrationEmail({ silent: true }).catch(() => { });
   }
@@ -3017,6 +3057,30 @@ selectMailProvider.addEventListener('change', async () => {
   saveSettings({ silent: true }).catch(() => { });
 });
 
+mail2925ModeButtons.forEach((button) => {
+  button.addEventListener('click', async () => {
+    const nextMode = normalizeMail2925Mode(button.dataset.mail2925Mode);
+    const previousMode = normalizeMail2925Mode(latestState?.mail2925Mode);
+    if (nextMode === getSelectedMail2925Mode()) {
+      return;
+    }
+
+    setMail2925Mode(nextMode);
+    updateMailProviderUI();
+
+    const leavingGeneratedAlias = selectMailProvider.value === '2925'
+      && previousMode === MAIL_2925_MODE_PROVIDE
+      && nextMode !== MAIL_2925_MODE_PROVIDE
+      && isCurrentEmailManagedByGeneratedAlias('2925', latestState, previousMode);
+    if (leavingGeneratedAlias) {
+      await clearRegistrationEmail({ silent: true }).catch(() => { });
+    }
+
+    markSettingsDirty(true);
+    saveSettings({ silent: true }).catch(() => { });
+  });
+});
+
 selectEmailGenerator.addEventListener('change', () => {
   updateMailProviderUI();
   clearRegistrationEmail({ silent: true }).catch(() => { });
@@ -3402,6 +3466,7 @@ initHotmailListExpandedState();
 updateSaveButtonState();
 updateConfigMenuControls();
 setLocalCpaStep9Mode(DEFAULT_LOCAL_CPA_STEP9_MODE);
+setMail2925Mode(DEFAULT_MAIL_2925_MODE);
 initializeReleaseInfo().catch((err) => {
   console.error('Failed to initialize release info:', err);
 });