diff --git a/.gitignore b/.gitignore
index 72364f9..9878b45 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,6 @@
+# Developer tools
+.idea
+
 # Byte-compiled / optimized / DLL files
 __pycache__/
 *.py[cod]
diff --git a/config.schema.yaml b/config.schema.yaml
index cdf1be7..3a90d52 100644
--- a/config.schema.yaml
+++ b/config.schema.yaml
@@ -2,7 +2,6 @@
 smtp_accounts:
   description: "SMTP accounts"
   type: "array"
-  required: true
   items:
     type: "object"
     required: true
@@ -42,7 +41,6 @@ smtp_accounts:
 imap_accounts:
   description: "IMAP accounts"
   type: "array"
-  required: true
   items:
     type: "object"
     required: true