We receive the error below when attempting to release an email from quarantine. Can someone please assist with this?
Code:
Reporting-MTA: dns; mgw.domain.local
X-Proxmox-Queue-ID: 9E07BB61542
X-Proxmox-Sender: rfc822; postmaster@mgw.domain.local
Arrival-Date: Wed, 8 Jun 2022 12:41:29 +0300 (EAT)
Final-Recipient: rfc822; username@domain.tld
Original-Recipient: rfc822;username@domain.tld
Action: failed
Status: 5.7.1
Remote-MTA: dns; XXX.XX.X.X
Diagnostic-Code: smtp; 550 5.7.1 Sender ID (PRA) Not Permitted