diff --git a/classes/Mail.php b/classes/Mail.php
index bc09523d1..12d315516 100644
--- a/classes/Mail.php
+++ b/classes/Mail.php
@@ -245,7 +245,7 @@ class MailCore
 				else
 					$template_vars['{shop_logo}'] = '';
 			}
-
+			ShopUrl::cacheMainDomainForShop((int)$id_shop);
 			/* don't attach the logo as */
 			if (isset($logo))
 				$template_vars['{shop_logo}'] = $message->attach(new Swift_Message_EmbeddedFile(new Swift_File($logo), null, ImageManager::getMimeTypeByExtension($logo)));
@@ -274,6 +274,9 @@ class MailCore
 			/* Send mail */
 			$send = $swift->send($message, $to, new Swift_Address($from, $from_name));
 			$swift->disconnect();
+
+			ShopUrl::resetMainDomainCache();			
+
 			return $send;
 		}
 		catch (Swift_Exception $e) {
diff --git a/classes/PaymentModule.php b/classes/PaymentModule.php
index f23fd83b7..e19f2947b 100644
--- a/classes/PaymentModule.php
+++ b/classes/PaymentModule.php
@@ -135,6 +135,8 @@ abstract class PaymentModuleCore extends Module
 		$this->context->customer = new Customer($this->context->cart->id_customer);
 		$this->context->language = new Language($this->context->cart->id_lang);
 		$this->context->shop = ($shop ? $shop : new Shop($this->context->cart->id_shop));
+		ShopUrl::resetMainDomainCache();
+
 		$id_currency = $currency_special ? (int)$currency_special : (int)$this->context->cart->id_currency;
 		$this->context->currency = new Currency($id_currency, null, $this->context->shop->id);
 		if (Configuration::get('PS_TAX_ADDRESS_TYPE') == 'id_address_delivery')
diff --git a/classes/order/OrderHistory.php b/classes/order/OrderHistory.php
index 5205dc72f..853d15450 100644
--- a/classes/order/OrderHistory.php
+++ b/classes/order/OrderHistory.php
@@ -85,6 +85,8 @@ class OrderHistoryCore extends ObjectModel
 		else
 			return;
 
+		ShopUrl::cacheMainDomainForShop($order->id_shop);
+
 		$new_os = new OrderState((int)$new_order_state, $order->id_lang);
 		$old_os = $order->getCurrentOrderState();
 		$is_validated = $this->isValidated();
@@ -326,6 +328,8 @@ class OrderHistoryCore extends ObjectModel
 			'newOrderStatus' => $new_os,
 			'id_order' => (int)$order->id,
 		));
+
+		ShopUrl::resetMainDomainCache();
 	}
 
 	/**
@@ -377,6 +381,8 @@ class OrderHistoryCore extends ObjectModel
 			WHERE oh.`id_order_history` = '.(int)$this->id.' AND os.`send_email` = 1');
 		if (isset($result['template']) && Validate::isEmail($result['email']))
 		{
+			ShopUrl::cacheMainDomainForShop($order->id_shop);
+			
 			$topic = $result['osname'];
 			$data = array(
 				'{lastname}' => $result['lastname'],
@@ -400,6 +406,8 @@ class OrderHistoryCore extends ObjectModel
 			if (Validate::isLoadedObject($order))
 				Mail::Send((int)$order->id_lang, $result['template'], $topic, $data, $result['email'], $result['firstname'].' '.$result['lastname'],
 					null, null, null, null, _PS_MAIL_DIR_, false, (int)$order->id_shop);
+			
+			ShopUrl::resetMainDomainCache();
 		}
 
 		return true;
diff --git a/classes/shop/ShopUrl.php b/classes/shop/ShopUrl.php
index 62d43aaa9..c30bb2676 100644
--- a/classes/shop/ShopUrl.php
+++ b/classes/shop/ShopUrl.php
@@ -143,25 +143,39 @@ class ShopUrlCore extends ObjectModel
 		return Db::getInstance()->getValue($sql);
 	}
 
-	public static function getMainShopDomain()
+	public static function getMainShopDomain($id_shop = null)
 	{
-		if (!self::$main_domain)
+		if (!self::$main_domain || $id_shop !== null)
 			self::$main_domain = Db::getInstance()->getValue('SELECT domain
 															FROM '._DB_PREFIX_.'shop_url
-															WHERE main=1 AND id_shop = '.Context::getContext()->shop->id);
+															WHERE main=1 AND id_shop = '.($id_shop !== null ? (int)$id_shop : Context::getContext()->shop->id));
 		return self::$main_domain;
 	}
 
-	public static function getMainShopDomainSSL()
+	public static function cacheMainDomainForShop($id_shop)
 	{
-		if (!self::$main_domain_ssl)
-		{
+		if (!Validate::isUnsignedId($id_shop))
+			return false;
+
+		ShopUrl::getMainShopDomain($id_shop);
+		ShopUrl::getMainShopDomainSSL($id_shop);
+	}
+	
+	public static function resetMainDomainCache()
+	{
+		self::$main_domain = null;
+		self::$main_domain_ssl = null;
+	}
+
+
+	public static function getMainShopDomainSSL($id_shop = null)
+	{
+		if (!self::$main_domain_ssl || $id_shop !== null)
 			$sql = 'SELECT domain_ssl
 					FROM '._DB_PREFIX_.'shop_url
 					WHERE main = 1
-						AND id_shop='.Context::getContext()->shop->id;
+						AND id_shop = '.($id_shop !== null ? (int)$id_shop : Context::getContext()->shop->id);
 			self::$main_domain_ssl = Db::getInstance()->getValue($sql);
-		}
 		return self::$main_domain_ssl;
 	}
 }
diff --git a/controllers/admin/AdminCustomerThreadsController.php b/controllers/admin/AdminCustomerThreadsController.php
index b678cc1d4..d97b0fded 100644
--- a/controllers/admin/AdminCustomerThreadsController.php
+++ b/controllers/admin/AdminCustomerThreadsController.php
@@ -373,6 +373,9 @@ class AdminCustomerThreadsControllerCore extends AdminController
 			if (Tools::isSubmit('submitReply'))
 			{
 				$ct = new CustomerThread($id_customer_thread);
+
+				ShopUrl::cacheMainDomainForShop((int)$ct->id_shop);
+
 				$cm = new CustomerMessage();
 				$cm->id_employee = (int)$this->context->employee->id;
 				$cm->id_customer_thread = $ct->id;
diff --git a/controllers/admin/AdminOrdersController.php b/controllers/admin/AdminOrdersController.php
index 18f858e77..6da191cd1 100755
--- a/controllers/admin/AdminOrdersController.php
+++ b/controllers/admin/AdminOrdersController.php
@@ -268,6 +268,8 @@ class AdminOrdersControllerCore extends AdminController
 				throw new PrestaShopException('Can\'t load Order object');
 		}
 
+		ShopUrl::cacheMainDomainForShop((int)$order->id_shop);
+
 		/* Update shipping number */
 		if (Tools::isSubmit('submitShippingNumber') && isset($order))
 		{