diff --git a/addons/payment_paypal/models/paypal.py b/addons/payment_paypal/models/paypal.py
index 2bdaead2c5d..52c3ec768d4 100644
--- a/addons/payment_paypal/models/paypal.py
+++ b/addons/payment_paypal/models/paypal.py
@@ -227,10 +227,17 @@ class TxPaypal(osv.Model):
         if tx.partner_reference and data.get('payer_id') != tx.partner_reference:
             invalid_parameters.append(('payer_id', data.get('payer_id'), tx.partner_reference))
         # check seller
-        if data.get('receiver_email') != tx.acquirer_id.paypal_email_account:
-            invalid_parameters.append(('receiver_email', data.get('receiver_email'), tx.acquirer_id.paypal_email_account))
         if data.get('receiver_id') and tx.acquirer_id.paypal_seller_account and data['receiver_id'] != tx.acquirer_id.paypal_seller_account:
             invalid_parameters.append(('receiver_id', data.get('receiver_id'), tx.acquirer_id.paypal_seller_account))
+        if not data.get('receiver_id') or not tx.acquirer_id.paypal_seller_account:
+            # Check receiver_email only if receiver_id was not checked.
+            # In Paypal, this is possible to configure as receiver_email a different email than the business email (the login email)
+            # In Odoo, there is only one field for the Paypal email: the business email. This isn't possible to set a receiver_email
+            # different than the business email. Therefore, if you want such a configuration in your Paypal, you are then obliged to fill
+            # the Merchant ID in the Paypal payment acquirer in Odoo, so the check is performed on this variable instead of the receiver_email.
+            # At least one of the two checks must be done, to avoid fraudsters.
+            if data.get('receiver_email') != tx.acquirer_id.paypal_email_account:
+                invalid_parameters.append(('receiver_email', data.get('receiver_email'), tx.acquirer_id.paypal_email_account))
 
         return invalid_parameters