Undelivered Mail Returned to Sender

Newb11

New Member
Nov 30, 2024
2
0
1
Hi, I have the email notification set up to notify me when a back-up occurs, but I am getting the following email sent to me several days days later (after the notification was sent and I successfully received it.) Is there something I have to set to prevent getting this (even though the email notification of the back-up actually goes through days earlier?) This is coming from a Gmail account.
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This is the mail system at host proxmox01.local.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

The mail system

<my email address>: host mx01.mail.icloud.com[IP address] said: 450 4.1.8
<root@proxmox01.local>: Sender address rejected: Domain not found (in reply
to RCPT TO command)
Reporting-MTA: dns; proxmox01.local
X-Postfix-Queue-ID: 1E8A6141030
X-Postfix-Sender: rfc822; root@proxmox01.local
Arrival-Date: Sun, 15 Dec 2024 01:02:06 -0800 (PST)

Final-Recipient: rfc822; my email address
Original-Recipient: rfc822;my email address
Action: failed
Status: 4.1.8
Remote-MTA: dns; mx01.mail.icloud.com
Diagnostic-Code: smtp; 450 4.1.8 <root@proxmox01.local>: Sender address
rejected: Domain not found

From: Proxmox VE <root@proxmox01.local>
Subject: vzdump backup status (proxmox01.local): backup successful
Date:
December 15, 2024 at 1:02:06 AM PST
To: my email address
 

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