After you have access to your G Suite account again, make sure to sign in to your sales automation or campaign tool. Usually, with your email, connected tools are disconnected when your account is disabled.
Additionally, make sure to check your email deliverability. If google flagged you as spam before, you should specifically
check your Sender Score. If your sender score is bad, you must start
warming it up with an
email warm-up tool.
It is not recommended to send mass emails without first performing a proper warm-up phase. This means that you should start with the warm-up phase, connect all your tools (but make sure that the sending is paused), and check your deliverability regularly, and only then you can start sending cold emails again.
Unfiltered is the right tool for this situation with its automated campaign sending, our software will positively interact with your emails, which automatically increases your sender score and
email deliverability.