Do not send a ticket notification to a specific client, how to limit responses by filter?

Question

OTRS

Hello colleagues, the essence of the question: a brief background, there was a kind of "rebellion of the machines", my OTRS began to conduct endless correspondence with the OTRS client. In OTRS itself, I could not find any restrictions on sending a notification for a specific filter, namely the client's email address. Can anyone come across this madness and tell me how to solve this problem?

Answer 1

fix it on the mailserver
and be glad that it's not a machine with autorun