My Mautic get crazy: send emails random to all people

Your software
My Mautic version is: 4.4.1
My PHP version is: 7,4

These errors are showing in the log: No one

Steps I have tried to fix the problem: Change API Amazon SES

Problem:
Hello.

I upgraded a few days ago to 4.4.1, and everything was fine. But since yesterday I received mails from many people telling me that they receive a lot of mails, one person received up to 50 mails during the day, from random mails, from campaigns, broadcasts, old ones, everything.

To avoid this I deactivated the Amazon SES API but I keep getting hundreds of messages from Mautic telling me that he can’t send mails.

There are no messages in the error-log.

I have a launch on Monday, and I’m desperate.

Thanks.

Hi, do you have anything in your var/spool folder?
Also: do you have any segment emails where publish down date is not set

Hello friend!
No to all
I had to disconnect Amazon SES, it was sent 30.000 emails to random people, emails with passwords, access to premium content, newsletter, all random, some people received 10 emails.
I will not use Mautic in a long time, I have 2000 unsuscribers.
Thanks friend, your work is very appreciated.