diff --git a/CHANGELOG.md b/CHANGELOG.md
index 197d6b4..70eb290 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,6 +14,7 @@ and this project adheres to
 
 ### Fixed
 
+- 👽️(dimail) increase timeout value for check domain API call
 - 🧱(helm) add resource-server ingress path #743
 - 🌐(backend) synchronize translations with crowdin again
 
diff --git a/src/backend/mailbox_manager/utils/dimail.py b/src/backend/mailbox_manager/utils/dimail.py
index f67d16f..131c82a 100644
--- a/src/backend/mailbox_manager/utils/dimail.py
+++ b/src/backend/mailbox_manager/utils/dimail.py
@@ -425,7 +425,7 @@ class DimailAPIClient:
                 f"{self.API_URL}/domains/{domain.name}/check/",
                 headers={"Authorization": f"Basic {self.API_CREDENTIALS}"},
                 verify=True,
-                timeout=10,
+                timeout=20,
             )
         except requests.exceptions.ConnectionError as error:
             logger.error(