Resolved Nonexistent / unknown addresses in the mail queue list?

[ertu]

hi;
i have an interesting problem and cannot find a solution
not owned by me in the recipient section of the mail queue, there are addresses that i am sure that I did not send e-mails..
exmp; image


Where do recipients addresses come from, where can they be defined?
Thank you for your time!

 

[Bitpalast]

All of these seem to have the same recipient bankzz2020@gmail.com. Could the outgoing mails be a result of incoming spam that was addressed to non-existent addresses or a mailbox that is associated with an autoresponder? It is also possible that such mails are sent from a website script. When you look into /var/log/maillog you will find entries for all outgoing mails and can identify the source.

 

[ertu]

i looked through the source but saw an illegal redirect to mailboxes. i have to remove mailboxes by examining them individually.
thanks for the speeded information