MailPoet sending service and default WP sending method together

Hello,

I would like to know if the following case is possible:

We would like to send all newsletters via MailPoet sending service and all transactional mails via default WordPress sending method.

Transactional mails via default WordPress sending method because we want to attach PDF invoices to mails and this is not allowed with the MailPoet sending service.

For this we have made the following settings:

MailPoet Settings > Send with… > MailPoet Sending Service

MailPoet Settings > Advanced > Send all site’s emails with… > Default WordPress sending method

Is that correct? Or does this not work in general?

Best regards
Manuel