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
@@ -5299,6 +5299,7 @@
     'PhortuneDisplayException' => 'applications/phortune/exception/PhortuneDisplayException.php',
     'PhortuneErrCode' => 'applications/phortune/constants/PhortuneErrCode.php',
     'PhortuneExternalController' => 'applications/phortune/controller/external/PhortuneExternalController.php',
+    'PhortuneExternalOrderController' => 'applications/phortune/controller/external/PhortuneExternalOrderController.php',
     'PhortuneExternalOverviewController' => 'applications/phortune/controller/external/PhortuneExternalOverviewController.php',
     'PhortuneExternalUnsubscribeController' => 'applications/phortune/controller/external/PhortuneExternalUnsubscribeController.php',
     'PhortuneInvoiceView' => 'applications/phortune/view/PhortuneInvoiceView.php',
@@ -11891,6 +11892,7 @@
     'PhortuneDisplayException' => 'Exception',
     'PhortuneErrCode' => 'PhortuneConstants',
     'PhortuneExternalController' => 'PhortuneController',
+    'PhortuneExternalOrderController' => 'PhortuneExternalController',
     'PhortuneExternalOverviewController' => 'PhortuneExternalController',
     'PhortuneExternalUnsubscribeController' => 'PhortuneExternalController',
     'PhortuneInvoiceView' => 'AphrontTagView',
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
@@ -112,6 +112,9 @@
         'external/(?P<addressKey>[^/]+)/(?P<accessKey>[^/]+)/' => array(
           '' => 'PhortuneExternalOverviewController',
           'unsubscribe/' => 'PhortuneExternalUnsubscribeController',
+          'order/' => array(
+            '(?P<orderID>[^/]+)/' => 'PhortuneExternalOrderController',
+          ),
         ),
         'merchant/' => array(
           $this->getQueryRoutePattern()
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
@@ -127,19 +127,11 @@
 
       $crumb = id(new PHUICrumbView())
         ->setIcon('fa-diamond')
-        ->setName($crumb_name);
-
-      $can_see = PhabricatorPolicyFilter::hasCapability(
-        $viewer,
-        $account,
-        PhabricatorPolicyCapability::CAN_VIEW);
-      if ($can_see) {
-        $crumb->setHref($account->getURI());
-      }
+        ->setName($crumb_name)
+        ->setHref($email->getExternalURI());
 
       $crumbs
-        ->addCrumb($crumb)
-        ->addTextCrumb(pht('Viewing As "%s"', $email->getAddress()));
+        ->addCrumb($crumb);
     } else {
       $crumb = id(new PHUICrumbView())
         ->setIcon('fa-diamond')
@@ -153,11 +145,22 @@
 
   final protected function newExternalView() {
     $email = $this->getAccountEmail();
+    $xviewer = $this->getExternalViewer();
+
+    $origin_phid = $email->getAuthorPHID();
+
+    $handles = $xviewer->loadHandles(array($origin_phid));
+
 
     $messages = array();
     $messages[] = pht(
       'You are viewing this payment account as: %s',
       phutil_tag('strong', array(), $email->getAddress()));
+
+    $messages[] = pht(
+      'This email address was added to this payment account by: %s',
+      phutil_tag('strong', array(), $handles[$origin_phid]->getFullName()));
+
     $messages[] = pht(
       'Anyone who has a link to this page can view order history for '.
       'this payment account.');
diff --git a/src/applications/phortune/controller/external/PhortuneExternalOrderController.php b/src/applications/phortune/controller/external/PhortuneExternalOrderController.php
new file mode 100644
--- /dev/null
+++ b/src/applications/phortune/controller/external/PhortuneExternalOrderController.php
@@ -0,0 +1,40 @@
+<?php
+
+final class PhortuneExternalOrderController
+  extends PhortuneExternalController {
+
+  protected function handleExternalRequest(AphrontRequest $request) {
+    $xviewer = $this->getExternalViewer();
+    $email = $this->getAccountEmail();
+    $account = $email->getAccount();
+
+    $order = id(new PhortuneCartQuery())
+      ->setViewer($xviewer)
+      ->withAccountPHIDs(array($account->getPHID()))
+      ->withIDs(array($request->getURIData('orderID')))
+      ->executeOne();
+    if (!$order) {
+      return new Aphront404Response();
+    }
+
+    $timeline = $this->buildTransactionTimeline(
+      $order,
+      new PhortuneCartTransactionQuery());
+    $timeline->setShouldTerminate(true);
+
+    $crumbs = $this->newExternalCrumbs()
+      ->addTextCrumb($order->getObjectName());
+
+    $view = id(new PHUITwoColumnView())
+      ->setMainColumn(
+        array(
+          $timeline,
+        ));
+
+    return $this->newPage()
+      ->setTitle(pht('Order %d', $order->getID()))
+      ->setCrumbs($crumbs)
+      ->appendChild($view);
+ }
+
+}
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
@@ -9,6 +9,7 @@
     $account = $email->getAccount();
 
     $crumbs = $this->newExternalCrumbs()
+      ->addTextCrumb(pht('Viewing As "%s"', $email->getAddress()))
       ->setBorder(true);
 
     $header = id(new PHUIHeaderView())
@@ -61,6 +62,7 @@
 
     $invoices_table = id(new PhortuneOrderTableView())
       ->setViewer($xviewer)
+      ->setAccountEmail($email)
       ->setCarts($invoices)
       ->setIsInvoices(true);
 
@@ -87,6 +89,7 @@
 
     $receipts_table = id(new PhortuneOrderTableView())
       ->setViewer($xviewer)
+      ->setAccountEmail($email)
       ->setCarts($receipts);
 
     return id(new PHUIObjectBoxView())
diff --git a/src/applications/phortune/editor/PhortuneCartEditor.php b/src/applications/phortune/editor/PhortuneCartEditor.php
--- a/src/applications/phortune/editor/PhortuneCartEditor.php
+++ b/src/applications/phortune/editor/PhortuneCartEditor.php
@@ -246,5 +246,102 @@
     return $xactions;
   }
 
+  protected function newAuxiliaryMail($object, array $xactions) {
+    $xviewer = PhabricatorUser::getOmnipotentUser();
+    $account = $object->getAccount();
+
+    $addresses = id(new PhortuneAccountEmailQuery())
+      ->setViewer($xviewer)
+      ->withAccountPHIDs(array($account->getPHID()))
+      ->withStatuses(
+        array(
+          PhortuneAccountEmailStatus::STATUS_ACTIVE,
+        ))
+      ->execute();
+
+    $messages = array();
+    foreach ($addresses as $address) {
+      $message = $this->newExternalMail($address, $object, $xactions);
+      if ($message) {
+        $messages[] = $message;
+      }
+    }
+
+    return $messages;
+  }
+
+  private function newExternalMail(
+    PhortuneAccountEmail $email,
+    PhortuneCart $cart,
+    array $xactions) {
+    $xviewer = PhabricatorUser::getOmnipotentUser();
+    $account = $cart->getAccount();
+
+    $id = $cart->getID();
+    $name = $cart->getName();
+
+    $origin_user = id(new PhabricatorPeopleQuery())
+      ->setViewer($xviewer)
+      ->withPHIDs(array($email->getAuthorPHID()))
+      ->executeOne();
+    if (!$origin_user) {
+      return null;
+    }
+
+    if ($this->isInvoice()) {
+      $subject = pht('[Invoice #%d] %s', $id, $name);
+      $order_header = pht('INVOICE DETAIL');
+    } else {
+      $subject = pht('[Order #%d] %s', $id, $name);
+      $order_header = pht('ORDER DETAIL');
+    }
+
+    $body = id(new PhabricatorMetaMTAMailBody())
+      ->setViewer($xviewer)
+      ->setContextObject($cart);
+
+    $origin_username = $origin_user->getUsername();
+    $origin_realname = $origin_user->getRealName();
+    if (strlen($origin_realname)) {
+      $origin_display = pht('%s (%s)', $origin_username, $origin_realname);
+    } else {
+      $origin_display = pht('%s', $origin_username);
+    }
+
+    $body->addRawSection(
+      pht(
+        'This email address (%s) was added to a payment account (%s) '.
+        'by %s.',
+        $email->getAddress(),
+        $account->getName(),
+        $origin_display));
+
+    $body->addLinkSection(
+      $order_header,
+      PhabricatorEnv::getProductionURI($email->getExternalOrderURI($cart)));
+
+    $body->addLinkSection(
+      pht('FULL ORDER HISTORY'),
+      PhabricatorEnv::getProductionURI($email->getExternalURI()));
+
+    $body->addLinkSection(
+      pht('UNSUBSCRIBE'),
+      PhabricatorEnv::getProductionURI($email->getUnsubscribeURI()));
+
+    return id(new PhabricatorMetaMTAMail())
+      ->setFrom($this->getActingAsPHID())
+      ->setSubject($subject)
+      ->addRawTos(
+        array(
+          $email->getAddress(),
+        ))
+      ->setForceDelivery(true)
+      ->setIsBulk(true)
+      ->setSensitiveContent(true)
+      ->setBody($body->render())
+      ->setHTMLBody($body->renderHTML());
+
+  }
+
 
 }
diff --git a/src/applications/phortune/query/PhortuneAccountEmailQuery.php b/src/applications/phortune/query/PhortuneAccountEmailQuery.php
--- a/src/applications/phortune/query/PhortuneAccountEmailQuery.php
+++ b/src/applications/phortune/query/PhortuneAccountEmailQuery.php
@@ -7,6 +7,7 @@
   private $phids;
   private $accountPHIDs;
   private $addressKeys;
+  private $statuses;
 
   public function withIDs(array $ids) {
     $this->ids = $ids;
@@ -28,6 +29,11 @@
     return $this;
   }
 
+  public function withStatuses(array $statuses) {
+    $this->statuses = $statuses;
+    return $this;
+  }
+
   public function newResultObject() {
     return new PhortuneAccountEmail();
   }
@@ -90,6 +96,13 @@
         $this->addressKeys);
     }
 
+    if ($this->statuses !== null) {
+      $where[] = qsprintf(
+        $conn,
+        'address.status IN (%Ls)',
+        $this->statuses);
+    }
+
     return $where;
   }
 
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
@@ -92,6 +92,14 @@
       $this->getAccessKey());
   }
 
+  public function getExternalOrderURI(PhortuneCart $cart) {
+    return urisprintf(
+      '/phortune/external/%s/%s/order/%d/',
+      $this->getAddressKey(),
+      $this->getAccessKey(),
+      $cart->getID());
+  }
+
 
 /* -(  PhabricatorPolicyInterface  )----------------------------------------- */
 
diff --git a/src/applications/phortune/storage/PhortuneCart.php b/src/applications/phortune/storage/PhortuneCart.php
--- a/src/applications/phortune/storage/PhortuneCart.php
+++ b/src/applications/phortune/storage/PhortuneCart.php
@@ -656,6 +656,10 @@
     return idx($this->metadata, $key, $default);
   }
 
+  public function getObjectName() {
+    return pht('Order %d', $this->getID());
+  }
+
 
 /* -(  PhabricatorApplicationTransactionInterface  )------------------------- */
 
diff --git a/src/applications/phortune/view/PhortuneOrderTableView.php b/src/applications/phortune/view/PhortuneOrderTableView.php
--- a/src/applications/phortune/view/PhortuneOrderTableView.php
+++ b/src/applications/phortune/view/PhortuneOrderTableView.php
@@ -6,6 +6,7 @@
   private $noDataString;
   private $isInvoices;
   private $isMerchantView;
+  private $accountEmail;
 
   public function setCarts(array $carts) {
     $this->carts = $carts;
@@ -43,13 +44,24 @@
     return $this->isMerchantView;
   }
 
+  public function setAccountEmail(PhortuneAccountEmail $account_email) {
+    $this->accountEmail = $account_email;
+    return $this;
+  }
+
+  public function getAccountEmail() {
+    return $this->accountEmail;
+  }
+
   public function render() {
     $carts = $this->getCarts();
     $viewer = $this->getUser();
 
     $is_invoices = $this->getIsInvoices();
     $is_merchant = $this->getIsMerchantView();
-    $is_external = (!$viewer->getPHID());
+    $is_external = (bool)$this->getAccountEmail();
+
+    $email = $this->getAccountEmail();
 
     $phids = array();
     foreach ($carts as $cart) {
@@ -65,7 +77,16 @@
     $rows = array();
     $rowc = array();
     foreach ($carts as $cart) {
-      $cart_link = $handles[$cart->getPHID()]->renderLink();
+      if ($is_external) {
+        $cart_link = phutil_tag(
+          'a',
+          array(
+            'href' => $email->getExternalOrderURI($cart),
+          ),
+          $handles[$cart->getPHID()]->getName());
+      } else {
+        $cart_link = $handles[$cart->getPHID()]->renderLink();
+      }
       $purchases = $cart->getPurchases();
 
       if (count($purchases) == 1) {
diff --git a/src/applications/phortune/worker/PhortuneSubscriptionWorker.php b/src/applications/phortune/worker/PhortuneSubscriptionWorker.php
--- a/src/applications/phortune/worker/PhortuneSubscriptionWorker.php
+++ b/src/applications/phortune/worker/PhortuneSubscriptionWorker.php
@@ -22,6 +22,7 @@
       return;
     }
 
+
     $account = $subscription->getAccount();
     $merchant = $subscription->getMerchant();
 
diff --git a/src/applications/transactions/editor/PhabricatorApplicationTransactionEditor.php b/src/applications/transactions/editor/PhabricatorApplicationTransactionEditor.php
--- a/src/applications/transactions/editor/PhabricatorApplicationTransactionEditor.php
+++ b/src/applications/transactions/editor/PhabricatorApplicationTransactionEditor.php
@@ -1520,6 +1520,10 @@
       }
     }
 
+    foreach ($this->newAuxiliaryMail($object, $xactions) as $message) {
+      $messages[] = $message;
+    }
+
     // NOTE: This actually sends the mail. We do this last to reduce the chance
     // that we send some mail, hit an exception, then send the mail again when
     // retrying.
@@ -4799,6 +4803,10 @@
     return $extensions;
   }
 
+  protected function newAuxiliaryMail($object, array $xactions) {
+    return array();
+  }
+
   private function generateMailStamps($object, $data) {
     if (!$data || !is_array($data)) {
       return null;