diff --git a/privacy_consent/models/mail_mail.py b/privacy_consent/models/mail_mail.py
index e0b7e37..583fa38 100644
--- a/privacy_consent/models/mail_mail.py
+++ b/privacy_consent/models/mail_mail.py
@@ -12,20 +12,24 @@ class MailMail(models.Model):
     ):
         """Write consent status after sending message."""
         # Know if mail was successfully sent to a privacy consent
-        if (
-            self.mail_message_id.model == "privacy.consent"
-            and self.state == "sent"
-            and success_pids
-            and not failure_reason
-            and not failure_type
-        ):
-            # Get related consent
-            consent = self.env["privacy.consent"].browse(self.mail_message_id.res_id)
-            # Set as sent if needed
-            if consent.state == "draft" and consent.partner_id.id in {
-                par.id for par in success_pids
-            }:
-                consent.write({"state": "sent"})
+        res_ids = []
+        for mail in self:
+            if (
+                mail.mail_message_id.model == "privacy.consent"
+                and mail.state == "sent"
+                and success_pids
+                and not failure_reason
+                and not failure_type
+            ):
+                res_ids.append(mail.mail_message_id.res_id)
+        consents = self.env["privacy.consent"].search(
+            [
+                ("id", "in", res_ids),
+                ("state", "=", "draft"),
+                ("partner_id", "in", [par.id for par in success_pids]),
+            ]
+        )
+        consents.write({"state": "sent"})
         return super()._postprocess_sent_message(
             success_pids=success_pids,
             failure_reason=failure_reason,