I (admin) receive unwanted out-of-office-reply mails from clients

Major7

A client has set an out-of-office-reply. Every day i get many of his out-of-office mails to my admin mailbox but i didn't sent him mails.

In RSPAMD UI i can see that the mails are sent to Envelope From instead of From.

Example:

Client's Wordpress send many info mails (Your Plugin xyz has been updated)
Envelope From = client1@cp-domain.com
From = wordpress@client.com
To = office@client.com

The out-of-office-reply:

Envelope From =
From = office@client.com
To = client1@cp-domain.com

Shouldn't those mails are sent to his wordpress@client.com address instead of my admin address?
client1@cp-domain.com istn't a valid address, i receive them because i have set a catch-all.

Kosta

Major7 if you remove catch all - would this fix your issue?

Major7

Kosta sure it would fix that i am not getting his mails anymore but this is not an option, because i need catch-all on that domain.

It would be better that mails sent from a PHP webspace (Wordpress) are not using a non-existing mailbox client1@cp-domain.com. Or if this is not possible, some settings on the mailserver should route that mails to that client instead to me.

"client1" is the username that is also shown in his SSH settings (login name) ssh -p 22 client1@1.2.3.4.