diff --git a/packages/worker/src/api/routes/global/email.js b/packages/worker/src/api/routes/global/email.js
index db3b4db63b..d545c10ede 100644
--- a/packages/worker/src/api/routes/global/email.js
+++ b/packages/worker/src/api/routes/global/email.js
@@ -15,10 +15,10 @@ function buildEmailSendValidation() {
     }),
     cc: Joi.string().email({
       multiple: true,
-    }),
+    }).allow("", null),
     bcc: Joi.string().email({
       multiple: true,
-    }),
+    }).allow("", null),
     purpose: Joi.string().valid(...Object.values(EmailTemplatePurpose)),
     workspaceId: Joi.string().allow("", null),
     from: Joi.string().allow("", null),