The mailbox (for receiving with IMAP / POP3) and the AWS (for sending via SMTP / API) are not necessarily connected. You can easily setup your mailbox somewhere else and receive you responses.
Is your question related to the inbox monitoring for bounces? This can be any IMAP account - its not connected to AWS.
It seems like i can monitor the bounces at the moment with AWS so there is no problems there.
What mailbox do you use for imap? I guess my main question is how can i set it both to be contect and get my mails on gmail while have another imap for the same mail somewhere else.
Is it possible to have 2 different mail boxes that get the mails from the same email? one for mautic and one for gmail.