Second mail : "Undelivered Mail Returned to Sender"

[dvb91]

Hi,

I am using a cluster with 3 nodes (Proxmox VE 8.2.4). I added external SMTP, to send mails via my provider. After every backup, I received a "backup successful" mail -> This part is OK.

Unfortunately, I always receive a second mail "Undelivered Mail Returned to Sender", with an older date. Example for this morning. 3 mails OK, but 3 issues "Undelivered..." :


When I check one of "Undelivered..." mails, date of sending is a few days old -> 27 jui.



Could you please help me to find the problem ?
Maybe I missed something in settings.

Thanks.

 

[dvb91]

After a fresh install (upgrading hw) , problem's gone. Probably a bad setting.
Sorry for the inconvenience caused by this post.