diff --git a/core/src/smtp/parser.rs b/core/src/smtp/parser.rs
index febbb2dbe..7fc475261 100644
--- a/core/src/smtp/parser.rs
+++ b/core/src/smtp/parser.rs
@@ -116,6 +116,8 @@ pub fn is_disabled_account(e: &str) -> bool {
 	e.contains("disabled")
 	// 554 delivery error: Sorry your message to <EMAIL> cannot be delivered. This account has been disabled or discontinued
  || e.contains("discontinued")
+ //550 5.2.1 RACT MY.IP: Mailbox is inactive: <USER@hanmail.net><CRLF> (on hanmail.net)
+ || e.contains("inactive")
 }
 
 /// Check if the error is an IO "incomplete" error.