Reporting-MTA: dns; dostup.org.ua
X-Postfix-Queue-ID: 4E5713140C91
X-Postfix-Sender: rfc822; xxxxxxxxxxxxxxxxxxxxxxxx@xxxxxx.xxx.xx
Arrival-Date: Thu, 13 Aug 2026 15:24:07 +0300 (EEST)

Final-Recipient: rfc822; xxxxxxxxxxx@xxx.xxx.xx
Original-Recipient: rfc822;xxxxxxxxxxx@xxx.xxx.xx
Action: failed
Status: 4.7.25
Remote-MTA: dns; mx1.kvs.gov.ua
Diagnostic-Code: smtp; 450 4.7.25 Client host rejected: cannot find your
    hostname, [178.20.154.100]