Is there a way to configure OIC Gen3 to use Exchange 365 as the MTA?

Hi team,

We recently had a scenario where our email limits of OIC(10k) were breached due to high volume SI testing. Since we are still on Gen2, we requested Oracle to raise the limit to 50k thru a SR. During the communication we got to know that, in Gen3 this will not be possible as there is a hard limit of 10k per day. In that note, we wanted to know if there is a way in OIC Gen3, we can use an external SMTP server (Exchange 365) to send emails?

Please share any available documentation on the same.