Reporting-MTA: dns; dostup.org.ua
X-Postfix-Queue-ID: 94AA63140794
X-Postfix-Sender: rfc822; xxxxxxxxxxxxxxxxxxxxxxxxx@xxxxxx.xxx.xx
Arrival-Date: Thu,  1 Oct 2026 18:29:27 +0300 (EEST)

Final-Recipient: rfc822; xxxxxx.xxxx@xxxx.xxx.xx
Original-Recipient: rfc822;xxxxxx.xxxx@xxxx.xxx.xx
Action: failed
Status: 5.1.1
Remote-MTA: dns; mail.nerc.gov.ua
Diagnostic-Code: smtp; 550 5.1.1 <xxxxxx.xxxx@xxxx.xxx.xx>: Recipient address
    rejected: User unknown