FluentSMTP + AWS for multiple domains

Hi

I have set Fluent SMTP + AWS by following this guide :

https://fluentsmtp.com/docs/set-up-amazon-ses-in-fluent-smtp/

i also sent a request to get out of AWS sandbox

i found that other post : https://fluentsmtp.com/send-wordpress-emails-using-amazon-ses/

my question is : can i use a same AWS account for multiple domains ?

during the request production out of sandbox process, they asked for one domain to verify

but what if i want to use this AWS account for 20 domains ?

please explain

thank you