Reporting-MTA: dns; relay.mailchannels.net
X-Postfix-Queue-ID: B86014C2B41
X-Postfix-Sender: rfc822; support@tservers4.com
Arrival-Date: Mon, 18 May 2026 10:00:06 +0000 (UTC)

Final-Recipient: rfc822; supportlgvecbg@shshuntong.com
Original-Recipient: rfc822;supportlgvecbg@shshuntong.com
Action: failed
Status: 4.0.0
Remote-MTA: dns; shshuntong.com
Diagnostic-Code: smtp; 421 Downstream server error
