diff --git a/frappe/email/smtp.py b/frappe/email/smtp.py
index 7819195422..12d8af38f3 100644
--- a/frappe/email/smtp.py
+++ b/frappe/email/smtp.py
@@ -7,7 +7,7 @@ from contextlib import suppress
 import frappe
 from frappe import _
 from frappe.email.oauth import Oauth
-from frappe.utils import cint, cstr
+from frappe.utils import cint, cstr, get_traceback
 
 
 class InvalidEmailCredentials(frappe.ValidationError):
@@ -129,8 +129,9 @@ class SMTPServer:
 
 	@classmethod
 	def throw_invalid_credentials_exception(cls):
+		original_exception = get_traceback() or "\n"
 		frappe.throw(
-			_("Please check your email login credentials."),
+			_("Please check your email login credentials.") + " " + original_exception.splitlines()[-1],
 			title=_("Invalid Credentials"),
 			exc=InvalidEmailCredentials,
 		)