Catch all for dovecot authentication?

Hi

I'm aware that there are several good reasons not to do what I want, but in my use-case it would be an interesting feature. So please no discussions about the reasonableness

I have some spamtrap SMTP servers (postfix). Currently SMTP AUTH is disabled. But as I daily have thousands of AUTH tries I thought it would be nice to be able to accept any AUTH request from postfix in dovecot.

Is something like this possible with dovecot? If so any good description available on how to achieve?

Thanks

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tobi