diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -5237,7 +5237,11 @@
     'PhortuneAccountEmailEditor' => 'applications/phortune/editor/PhortuneAccountEmailEditor.php',
     'PhortuneAccountEmailPHIDType' => 'applications/phortune/phid/PhortuneAccountEmailPHIDType.php',
     'PhortuneAccountEmailQuery' => 'applications/phortune/query/PhortuneAccountEmailQuery.php',
+    'PhortuneAccountEmailRotateController' => 'applications/phortune/controller/account/PhortuneAccountEmailRotateController.php',
+    'PhortuneAccountEmailRotateTransaction' => 'applications/phortune/xaction/PhortuneAccountEmailRotateTransaction.php',
     'PhortuneAccountEmailStatus' => 'applications/phortune/constants/PhortuneAccountEmailStatus.php',
+    'PhortuneAccountEmailStatusController' => 'applications/phortune/controller/account/PhortuneAccountEmailStatusController.php',
+    'PhortuneAccountEmailStatusTransaction' => 'applications/phortune/xaction/PhortuneAccountEmailStatusTransaction.php',
     'PhortuneAccountEmailTransaction' => 'applications/phortune/storage/PhortuneAccountEmailTransaction.php',
     'PhortuneAccountEmailTransactionQuery' => 'applications/phortune/query/PhortuneAccountEmailTransactionQuery.php',
     'PhortuneAccountEmailTransactionType' => 'applications/phortune/xaction/PhortuneAccountEmailTransactionType.php',
@@ -5296,6 +5300,7 @@
     'PhortuneErrCode' => 'applications/phortune/constants/PhortuneErrCode.php',
     'PhortuneExternalController' => 'applications/phortune/controller/external/PhortuneExternalController.php',
     'PhortuneExternalOverviewController' => 'applications/phortune/controller/external/PhortuneExternalOverviewController.php',
+    'PhortuneExternalUnsubscribeController' => 'applications/phortune/controller/external/PhortuneExternalUnsubscribeController.php',
     'PhortuneInvoiceView' => 'applications/phortune/view/PhortuneInvoiceView.php',
     'PhortuneLandingController' => 'applications/phortune/controller/PhortuneLandingController.php',
     'PhortuneMemberHasAccountEdgeType' => 'applications/phortune/edge/PhortuneMemberHasAccountEdgeType.php',
@@ -11815,7 +11820,11 @@
     'PhortuneAccountEmailEditor' => 'PhabricatorApplicationTransactionEditor',
     'PhortuneAccountEmailPHIDType' => 'PhabricatorPHIDType',
     'PhortuneAccountEmailQuery' => 'PhabricatorCursorPagedPolicyAwareQuery',
+    'PhortuneAccountEmailRotateController' => 'PhortuneAccountController',
+    'PhortuneAccountEmailRotateTransaction' => 'PhortuneAccountEmailTransactionType',
     'PhortuneAccountEmailStatus' => 'Phobject',
+    'PhortuneAccountEmailStatusController' => 'PhortuneAccountController',
+    'PhortuneAccountEmailStatusTransaction' => 'PhortuneAccountEmailTransactionType',
     'PhortuneAccountEmailTransaction' => 'PhabricatorModularTransaction',
     'PhortuneAccountEmailTransactionQuery' => 'PhabricatorApplicationTransactionQuery',
     'PhortuneAccountEmailTransactionType' => 'PhabricatorModularTransactionType',
@@ -11883,6 +11892,7 @@
     'PhortuneErrCode' => 'PhortuneConstants',
     'PhortuneExternalController' => 'PhortuneController',
     'PhortuneExternalOverviewController' => 'PhortuneExternalController',
+    'PhortuneExternalUnsubscribeController' => 'PhortuneExternalController',
     'PhortuneInvoiceView' => 'AphrontTagView',
     'PhortuneLandingController' => 'PhortuneController',
     'PhortuneMemberHasAccountEdgeType' => 'PhabricatorEdgeType',
diff --git a/src/applications/phortune/application/PhabricatorPhortuneApplication.php b/src/applications/phortune/application/PhabricatorPhortuneApplication.php
--- a/src/applications/phortune/application/PhabricatorPhortuneApplication.php
+++ b/src/applications/phortune/application/PhabricatorPhortuneApplication.php
@@ -87,7 +87,12 @@
             ),
             'addresses/' => array(
               '' => 'PhortuneAccountEmailAddressesController',
-              '(?P<id>\d+)/' => 'PhortuneAccountEmailViewController',
+              '(?P<addressID>\d+)/' => array(
+                '' => 'PhortuneAccountEmailViewController',
+                'rotate/' => 'PhortuneAccountEmailRotateController',
+                '(?P<action>disable|enable)/'
+                  => 'PhortuneAccountEmailStatusController',
+              ),
               $this->getEditRoutePattern('edit/')
                 => 'PhortuneAccountEmailEditController',
             ),
@@ -106,6 +111,7 @@
         ),
         'external/(?P<addressKey>[^/]+)/(?P<accessKey>[^/]+)/' => array(
           '' => 'PhortuneExternalOverviewController',
+          'unsubscribe/' => 'PhortuneExternalUnsubscribeController',
         ),
         'merchant/' => array(
           $this->getQueryRoutePattern()
diff --git a/src/applications/phortune/controller/account/PhortuneAccountEmailRotateController.php b/src/applications/phortune/controller/account/PhortuneAccountEmailRotateController.php
new file mode 100644
--- /dev/null
+++ b/src/applications/phortune/controller/account/PhortuneAccountEmailRotateController.php
@@ -0,0 +1,62 @@
+<?php
+
+final class PhortuneAccountEmailRotateController
+  extends PhortuneAccountController {
+
+  protected function shouldRequireAccountEditCapability() {
+    return true;
+  }
+
+  protected function handleAccountRequest(AphrontRequest $request) {
+    $viewer = $this->getViewer();
+    $account = $this->getAccount();
+
+    $address = id(new PhortuneAccountEmailQuery())
+      ->setViewer($viewer)
+      ->withAccountPHIDs(array($account->getPHID()))
+      ->withIDs(array($request->getURIData('addressID')))
+      ->requireCapabilities(
+        array(
+          PhabricatorPolicyCapability::CAN_VIEW,
+          PhabricatorPolicyCapability::CAN_EDIT,
+        ))
+      ->executeOne();
+    if (!$address) {
+      return new Aphront404Response();
+    }
+
+    $address_uri = $address->getURI();
+
+    if ($request->isFormOrHisecPost()) {
+      $xactions = array();
+
+      $xactions[] = $address->getApplicationTransactionTemplate()
+        ->setTransactionType(
+          PhortuneAccountEmailRotateTransaction::TRANSACTIONTYPE)
+        ->setNewValue(true);
+
+      $address->getApplicationTransactionEditor()
+        ->setActor($viewer)
+        ->setContentSourceFromRequest($request)
+        ->setContinueOnMissingFields(true)
+        ->setContinueOnNoEffect(true)
+        ->setCancelURI($address_uri)
+        ->applyTransactions($address, $xactions);
+
+      return id(new AphrontRedirectResponse())->setURI($address_uri);
+    }
+
+    return $this->newDialog()
+      ->setTitle(pht('Rotate Access Key'))
+      ->appendParagraph(
+        pht(
+          'Rotate the access key for email address %s?',
+          phutil_tag('strong', array(), $address->getAddress())))
+      ->appendParagraph(
+        pht(
+          'Existing access links which have been sent to this email address '.
+          'will stop working.'))
+      ->addSubmitButton(pht('Rotate Access Key'))
+      ->addCancelButton($address_uri);
+  }
+}
diff --git a/src/applications/phortune/controller/account/PhortuneAccountEmailStatusController.php b/src/applications/phortune/controller/account/PhortuneAccountEmailStatusController.php
new file mode 100644
--- /dev/null
+++ b/src/applications/phortune/controller/account/PhortuneAccountEmailStatusController.php
@@ -0,0 +1,137 @@
+<?php
+
+final class PhortuneAccountEmailStatusController
+  extends PhortuneAccountController {
+
+  protected function shouldRequireAccountEditCapability() {
+    return true;
+  }
+
+  protected function handleAccountRequest(AphrontRequest $request) {
+    $viewer = $this->getViewer();
+    $account = $this->getAccount();
+
+    $address = id(new PhortuneAccountEmailQuery())
+      ->setViewer($viewer)
+      ->withAccountPHIDs(array($account->getPHID()))
+      ->withIDs(array($request->getURIData('addressID')))
+      ->requireCapabilities(
+        array(
+          PhabricatorPolicyCapability::CAN_VIEW,
+          PhabricatorPolicyCapability::CAN_EDIT,
+        ))
+      ->executeOne();
+    if (!$address) {
+      return new Aphront404Response();
+    }
+
+    $address_uri = $address->getURI();
+
+    $is_enable = false;
+    $is_disable = false;
+
+    $old_status = $address->getStatus();
+    switch ($request->getURIData('action')) {
+      case 'enable':
+        if ($old_status === PhortuneAccountEmailStatus::STATUS_ACTIVE) {
+          return $this->newDialog()
+            ->setTitle(pht('Already Enabled'))
+            ->appendParagraph(
+              pht(
+                'You can not enable this address because it is already '.
+                'active.'))
+            ->addCancelButton($address_uri);
+        }
+
+        if ($old_status === PhortuneAccountEmailStatus::STATUS_UNSUBSCRIBED) {
+          return $this->newDialog()
+            ->setTitle(pht('Permanently Unsubscribed'))
+            ->appendParagraph(
+              pht(
+                'You can not enable this address because it has been '.
+                'permanently unsubscribed.'))
+            ->addCancelButton($address_uri);
+        }
+
+        $new_status = PhortuneAccountEmailStatus::STATUS_ACTIVE;
+        $is_enable = true;
+        break;
+      case 'disable':
+        if ($old_status === PhortuneAccountEmailStatus::STATUS_DISABLED) {
+          return $this->newDialog()
+            ->setTitle(pht('Already Disabled'))
+            ->appendParagraph(
+              pht(
+                'You can not disabled this address because it is already '.
+                'disabled.'))
+            ->addCancelButton($address_uri);
+        }
+
+        if ($old_status === PhortuneAccountEmailStatus::STATUS_UNSUBSCRIBED) {
+          return $this->newDialog()
+            ->setTitle(pht('Permanently Unsubscribed'))
+            ->appendParagraph(
+              pht(
+                'You can not disable this address because it has been '.
+                'permanently unsubscribed.'))
+            ->addCancelButton($address_uri);
+        }
+
+        $new_status = PhortuneAccountEmailStatus::STATUS_DISABLED;
+        $is_disable = true;
+        break;
+      default:
+        return new Aphront404Response();
+    }
+
+    if ($request->isFormOrHisecPost()) {
+      $xactions = array();
+
+      $xactions[] = $address->getApplicationTransactionTemplate()
+        ->setTransactionType(
+          PhortuneAccountEmailStatusTransaction::TRANSACTIONTYPE)
+        ->setNewValue($new_status);
+
+      $address->getApplicationTransactionEditor()
+        ->setActor($viewer)
+        ->setContentSourceFromRequest($request)
+        ->setContinueOnMissingFields(true)
+        ->setContinueOnNoEffect(true)
+        ->setCancelURI($address_uri)
+        ->applyTransactions($address, $xactions);
+
+      return id(new AphrontRedirectResponse())->setURI($address_uri);
+    }
+
+    $dialog = $this->newDialog();
+
+    $body = array();
+
+    if ($is_disable) {
+      $title = pht('Disable Address');
+
+      $body[] = pht(
+        'This address will no longer receive email, and access links will '.
+        'no longer function.');
+
+      $submit = pht('Disable Address');
+    } else {
+      $title = pht('Enable Address');
+
+      $body[] = pht(
+        'This address will receive email again, and existing links '.
+        'to access order history will work again.');
+
+      $submit = pht('Enable Address');
+    }
+
+    foreach ($body as $graph) {
+      $dialog->appendParagraph($graph);
+    }
+
+    return $dialog
+      ->setTitle($title)
+      ->addCancelButton($address_uri)
+      ->addSubmitButton($submit);
+  }
+}
diff --git a/src/applications/phortune/controller/account/PhortuneAccountEmailViewController.php b/src/applications/phortune/controller/account/PhortuneAccountEmailViewController.php
--- a/src/applications/phortune/controller/account/PhortuneAccountEmailViewController.php
+++ b/src/applications/phortune/controller/account/PhortuneAccountEmailViewController.php
@@ -14,7 +14,7 @@
     $address = id(new PhortuneAccountEmailQuery())
       ->setViewer($viewer)
       ->withAccountPHIDs(array($account->getPHID()))
-      ->withIDs(array($request->getURIData('id')))
+      ->withIDs(array($request->getURIData('addressID')))
       ->executeOne();
     if (!$address) {
       return new Aphront404Response();
@@ -83,6 +83,56 @@
         ->setDisabled(!$can_edit)
         ->setWorkflow(!$can_edit));
 
+    switch ($address->getStatus()) {
+      case PhortuneAccountEmailStatus::STATUS_ACTIVE:
+        $disable_name = pht('Disable Address');
+        $disable_icon = 'fa-times';
+        $can_disable = true;
+        $disable_action = 'disable';
+        break;
+      case PhortuneAccountEmailStatus::STATUS_DISABLED:
+        $disable_name = pht('Enable Address');
+        $disable_icon = 'fa-check';
+        $can_disable = true;
+        $disable_action = 'enable';
+        break;
+      case PhortuneAccountEmailStatus::STATUS_UNSUBSCRIBED:
+        $disable_name = pht('Disable Address');
+        $disable_icon = 'fa-times';
+        $can_disable = false;
+        $disable_action = 'disable';
+        break;
+    }
+
+    $disable_uri = $this->getApplicationURI(
+      urisprintf(
+        'account/%d/addresses/%d/%s/',
+        $account->getID(),
+        $address->getID(),
+        $disable_action));
+
+    $curtain->addAction(
+      id(new PhabricatorActionView())
+        ->setName($disable_name)
+        ->setIcon($disable_icon)
+        ->setHref($disable_uri)
+        ->setDisabled(!$can_disable)
+        ->setWorkflow(true));
+
+    $rotate_uri = $this->getApplicationURI(
+      urisprintf(
+        'account/%d/addresses/%d/rotate/',
+        $account->getID(),
+        $address->getID()));
+
+    $curtain->addAction(
+      id(new PhabricatorActionView())
+        ->setName(pht('Rotate Access Key'))
+        ->setIcon('fa-refresh')
+        ->setHref($rotate_uri)
+        ->setDisabled(!$can_edit)
+        ->setWorkflow(true));
+
     $curtain->addAction(
       id(new PhabricatorActionView())
         ->setName(pht('Show External View'))
@@ -100,7 +150,23 @@
     $view = id(new PHUIPropertyListView())
       ->setUser($viewer);
 
+    $access_key = $address->getAccessKey();
+
+    // This is not a meaningful security barrier: the full plaintext of the
+    // access key is visible on the page in the link target of the "Show
+    // External View" action. It's just here to make it clear "Rotate Access
+    // Key" actually does something.
+
+    $prefix_length = 4;
+    $visible_part = substr($access_key, 0, $prefix_length);
+    $masked_part = str_repeat(
+      "\xE2\x80\xA2",
+      strlen($access_key) - $prefix_length);
+    $access_display = $visible_part.$masked_part;
+    $access_display = phutil_tag('tt', array(), $access_display);
+
     $view->addProperty(pht('Email Address'), $address->getAddress());
+    $view->addProperty(pht('Access Key'), $access_display);
 
     return id(new PHUIObjectBoxView())
       ->setHeaderText(pht('Email Address Details'))
diff --git a/src/applications/phortune/controller/external/PhortuneExternalController.php b/src/applications/phortune/controller/external/PhortuneExternalController.php
--- a/src/applications/phortune/controller/external/PhortuneExternalController.php
+++ b/src/applications/phortune/controller/external/PhortuneExternalController.php
@@ -83,7 +83,29 @@
       return $dialog;
     }
 
-    // TODO: Test that status is good.
+    switch ($email->getStatus()) {
+      case PhortuneAccountEmailStatus::STATUS_ACTIVE:
+        break;
+      case PhortuneAccountEmailStatus::STATUS_DISABLED:
+        return $this->newDialog()
+          ->setTitle(pht('Address Disabled'))
+          ->appendParagraph(
+            pht(
+              'This email address (%s) has been disabled and no longer has '.
+              'access to this payment account.',
+              $email_display));
+      case PhortuneAccountEmailStatus::STATUS_UNSUBSCRIBED:
+        return $this->newDialog()
+          ->setTitle(pht('Permanently Unsubscribed'))
+          ->appendParagraph(
+            pht(
+              'This email address (%s) has been permanently unsubscribed '.
+              'and no longer has access to this payment account.',
+              $email_display));
+        break;
+      default:
+        return new Aphront404Response();
+    }
 
     $this->email = $email;
 
diff --git a/src/applications/phortune/controller/external/PhortuneExternalOverviewController.php b/src/applications/phortune/controller/external/PhortuneExternalOverviewController.php
--- a/src/applications/phortune/controller/external/PhortuneExternalOverviewController.php
+++ b/src/applications/phortune/controller/external/PhortuneExternalOverviewController.php
@@ -12,7 +12,14 @@
       ->setBorder(true);
 
     $header = id(new PHUIHeaderView())
-      ->setHeader(pht('Invoices and Receipts: %s', $account->getName()));
+      ->setHeader(pht('Invoices and Receipts: %s', $account->getName()))
+      ->addActionLink(
+        id(new PHUIButtonView())
+          ->setTag('a')
+          ->setIcon('fa-times')
+          ->setText(pht('Unsubscribe'))
+          ->setHref($email->getUnsubscribeURI())
+          ->setWorkflow(true));
 
     $external_view = $this->newExternalView();
     $invoices_view = $this->newInvoicesView();
diff --git a/src/applications/phortune/controller/external/PhortuneExternalUnsubscribeController.php b/src/applications/phortune/controller/external/PhortuneExternalUnsubscribeController.php
new file mode 100644
--- /dev/null
+++ b/src/applications/phortune/controller/external/PhortuneExternalUnsubscribeController.php
@@ -0,0 +1,67 @@
+<?php
+
+final class PhortuneExternalUnsubscribeController
+  extends PhortuneExternalController {
+
+  protected function handleExternalRequest(AphrontRequest $request) {
+    $xviewer = $this->getExternalViewer();
+    $email = $this->getAccountEmail();
+    $account = $email->getAccount();
+
+    $email_uri = $email->getExternalURI();
+
+    if ($request->isFormOrHisecPost()) {
+      $xactions = array();
+
+      $xactions[] = $email->getApplicationTransactionTemplate()
+        ->setTransactionType(
+          PhortuneAccountEmailStatusTransaction::TRANSACTIONTYPE)
+        ->setNewValue(PhortuneAccountEmailStatus::STATUS_UNSUBSCRIBED);
+
+      $email->getApplicationTransactionEditor()
+        ->setActor($xviewer)
+        ->setActingAsPHID($email->getPHID())
+        ->setContentSourceFromRequest($request)
+        ->setContinueOnMissingFields(true)
+        ->setContinueOnNoEffect(true)
+        ->setCancelURI($email_uri)
+        ->applyTransactions($email, $xactions);
+
+      return id(new AphrontRedirectResponse())->setURI($email_uri);
+    }
+
+    $email_display = phutil_tag(
+      'strong',
+      array(),
+      $email->getAddress());
+
+    $account_display = phutil_tag(
+      'strong',
+      array(),
+      $account->getName());
+
+    $submit = pht(
+      'Permanently Unsubscribe (%s)',
+      $email->getAddress());
+
+    return $this->newDialog()
+      ->setTitle(pht('Permanently Unsubscribe'))
+      ->appendParagraph(
+        pht(
+          'Permanently unsubscribe this email address (%s) from this '.
+          'payment account (%s)?',
+          $email_display,
+          $account_display))
+      ->appendParagraph(
+        pht(
+          'You will no longer receive email and access links will no longer '.
+          'function.'))
+      ->appendParagraph(
+        pht(
+          'This action is permanent and can not be undone.'))
+      ->addCancelButton($email_uri)
+      ->addSubmitButton($submit);
+
+  }
+
+}
diff --git a/src/applications/phortune/storage/PhortuneAccountEmail.php b/src/applications/phortune/storage/PhortuneAccountEmail.php
--- a/src/applications/phortune/storage/PhortuneAccountEmail.php
+++ b/src/applications/phortune/storage/PhortuneAccountEmail.php
@@ -85,6 +85,13 @@
       $this->getAccessKey());
   }
 
+  public function getUnsubscribeURI() {
+    return urisprintf(
+      '/phortune/external/%s/%s/unsubscribe/',
+      $this->getAddressKey(),
+      $this->getAccessKey());
+  }
+
 
 /* -(  PhabricatorPolicyInterface  )----------------------------------------- */
 
diff --git a/src/applications/phortune/xaction/PhortuneAccountEmailRotateTransaction.php b/src/applications/phortune/xaction/PhortuneAccountEmailRotateTransaction.php
new file mode 100644
--- /dev/null
+++ b/src/applications/phortune/xaction/PhortuneAccountEmailRotateTransaction.php
@@ -0,0 +1,23 @@
+<?php
+
+final class PhortuneAccountEmailRotateTransaction
+  extends PhortuneAccountEmailTransactionType {
+
+  const TRANSACTIONTYPE = 'rotate';
+
+  public function generateOldValue($object) {
+    return false;
+  }
+
+  public function applyInternalEffects($object, $value) {
+    $access_key = Filesystem::readRandomCharacters(16);
+    $object->setAccessKey($access_key);
+  }
+
+  public function getTitle() {
+    return pht(
+      '%s rotated the access key for this email address.',
+      $this->renderAuthor());
+  }
+
+}
diff --git a/src/applications/phortune/xaction/PhortuneAccountEmailStatusTransaction.php b/src/applications/phortune/xaction/PhortuneAccountEmailStatusTransaction.php
new file mode 100644
--- /dev/null
+++ b/src/applications/phortune/xaction/PhortuneAccountEmailStatusTransaction.php
@@ -0,0 +1,23 @@
+<?php
+
+final class PhortuneAccountEmailStatusTransaction
+  extends PhortuneAccountEmailTransactionType {
+
+  const TRANSACTIONTYPE = 'status';
+
+  public function generateOldValue($object) {
+    return $object->getStatus();
+  }
+
+  public function applyInternalEffects($object, $value) {
+    $object->setStatus($value);
+  }
+
+  public function getTitle() {
+    return pht(
+      '%s changed the status for this address to %s.',
+      $this->renderAuthor(),
+      $this->renderNewValue());
+  }
+
+}